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Top reports from HackerOne program at HackerOne:

  1. Account takeover via leaked session cookie to HackerOne - 1447 upvotes, $20000
  2. Confidential data of users and limited metadata of programs and reports accessible via GraphQL to HackerOne - 946 upvotes, $20000
  3. WannaCrypt “Killswitch” to HackerOne - 790 upvotes, $10000
  4. Email address of any user can be queried on Report Invitation GraphQL type when username is known to HackerOne - 605 upvotes, $8500
  5. Customer private program can disclose email any users through invited via username to HackerOne - 557 upvotes, $7500
  6. profile-picture name parameter with large value lead to DoS for other users and programs on the platform to HackerOne - 455 upvotes, $2500
  7. How the Bug stole hacking to HackerOne - 435 upvotes, $0
  8. Reflected XSS on www.hackerone.com and resources.hackerone.com to HackerOne - 331 upvotes, $500
  9. Partial disclosure of report activity through new "Export as .zip" feature to HackerOne - 329 upvotes, $10000
  10. Getting New Invitations without Leaving Programs to HackerOne - 291 upvotes, $500
  11. Team member with Program permission only can escalate to Admin permission to HackerOne - 254 upvotes, $2500
  12. Information Disclosure in /skills call to HackerOne - 251 upvotes, $10000
  13. Internal attachments can be exported via "Export as .zip" feature to HackerOne - 247 upvotes, $12500
  14. Denial of service via cache poisoning to HackerOne - 222 upvotes, $2500
  15. Cross-site Scripting (XSS) on HackerOne careers page to HackerOne - 220 upvotes, $500
  16. Reflected XSS on www.hackerone.com via Wistia embed code to HackerOne - 216 upvotes, $500
  17. Manipulate hacker profile and private program hacktivity to expose your name as researchers who is actively submitting reports with resolve status to HackerOne - 201 upvotes, $500
  18. Race condition in performing retest allows duplicated payments to HackerOne - 196 upvotes, $2100
  19. Uploading large payload on domain instructions causes server-side DoS to HackerOne - 187 upvotes, $2500
  20. DOM Based XSS in www.hackerone.com via PostMessage to HackerOne - 186 upvotes, $500
  21. 2020-10-09 Credential Stuffing Attack to HackerOne - 186 upvotes, $0
  22. Unauthorized access to metadata of undisclosed reports that were retested to HackerOne - 177 upvotes, $2500
  23. Markdown parsing issue enables insertion of malicious tags and event handlers to HackerOne - 176 upvotes, $5000
  24. Hacker can bypass 2FA requirement and reporter blacklist through embedded submission form to HackerOne - 174 upvotes, $10000
  25. Disclosure of payment_transactions for programs via GraphQL query to HackerOne - 167 upvotes, $2500
  26. 404-response contains debug-information with all headers to HackerOne - 162 upvotes, $500
  27. HackerOne Jira integration plugin Leaked JWT to unauthorized jira users to HackerOne - 161 upvotes, $3000
  28. Indexing of urls on the "External link warning" pages discloses many vulnerable endpoints from the past and unlisted videos/photos to HackerOne - 157 upvotes, $2500
  29. Total Paid Bounty Paid can be disclose to HackerOne - 156 upvotes, $500
  30. Unreleased CTF Levels are Revealed on /group/user/ID1?user=USERID endpoint to HackerOne - 152 upvotes, $500
  31. Web Authentication Endpoint Credentials Brute-Force Vulnerability to HackerOne - 149 upvotes, $1500
  32. Hacker.One Subdomain Takeover to HackerOne - 148 upvotes, $1000
  33. IE only: stored Cross-Site Scripting (XSS) vulnerability through Program Asset identifier to HackerOne - 146 upvotes, $2500
  34. SQL injection in GraphQL endpoint through embedded_submission_form_uuid parameter to HackerOne - 145 upvotes, $0
  35. Discrepancy in hacker profile report count may reveal existence of a private program by publishing a report to HackerOne - 141 upvotes, $3000
  36. Stealing contact form data on www.hackerone.com using Marketo Forms XSS with postMessage frame-jumping and jQuery-JSONP to HackerOne - 138 upvotes, $1500
  37. Team object in GraphQL disclosed private_comment to HackerOne - 136 upvotes, $2500
  38. Client-Side Race Condition using Marketo, allows sending user to data-protocol in Safari when form without onSuccess is submitted on www.hackerone.com to HackerOne - 136 upvotes, $1250
  39. Banned researcher gets email updates on a private program. to HackerOne - 136 upvotes, $500
  40. Unauthorized user can obtain report_sources attribute through Team GraphQL object to HackerOne - 134 upvotes, $2500
  41. h1-202 leaderboard photo discloses local wifi password to HackerOne - 131 upvotes, $500
  42. Private program disclosure via vpn_suspended GraphQL query to HackerOne - 128 upvotes, $2500
  43. Subdomain takeover at info.hacker.one to HackerOne - 128 upvotes, $1000
  44. Blind SSRF on errors.hackerone.net due to Sentry misconfiguration to HackerOne - 127 upvotes, $3500
  45. Disclose any user's private email through API to HackerOne - 127 upvotes, $2000
  46. Searching from Hacktivity returns hits for words in limited disclosure reports that are not visible to HackerOne - 125 upvotes, $2500
  47. Content spoofing and potential Cross-Site Scripting vulnerability on www.hackerone.com to HackerOne - 123 upvotes, $5000
  48. Race Condition leads to undeletable group member to HackerOne - 114 upvotes, $500
  49. Emails of invited collaborators are disclosed in full in payload for report participants to HackerOne - 109 upvotes, $1500
  50. Account recovery text message is sending a wrong domain to users. to HackerOne - 109 upvotes, $500
  51. ActiveStorage throws exception when using whitespace as filename, may lead to denial of service of multiple pages to HackerOne - 102 upvotes, $2500
  52. Race Conditions in Popular reports feature. to HackerOne - 102 upvotes, $500
  53. @wearehackerone.com is vulnerable to namespace attacks due to hackerone.com not being RFC2142 compliant. to HackerOne - 101 upvotes, $0
  54. DOM Based XSS in www.hackerone.com via PostMessage (bypass of #398054) to HackerOne - 98 upvotes, $565
  55. GraphQL field on Team node can be used to determine if External Program runs invite-only program to HackerOne - 97 upvotes, $2500
  56. Recently added 'Country' field doesn't send email notification when changed to HackerOne - 97 upvotes, $500
  57. [Bypass #645264] Report title disclosure despite the program settings for email notification is set to "No Content" to HackerOne - 96 upvotes, $500
  58. Subdomain takeover of resources.hackerone.com to HackerOne - 92 upvotes, $500
  59. Attacker with an Old account might still be able to DoS ctf.hacker101.com by sending a Crafted request to HackerOne - 92 upvotes, $500
  60. Harvesting all private invites using leave program fast-tracked invitation and security@ email forwarding feature to HackerOne - 89 upvotes, $2500
  61. A user can bypass approval step in Hacker Publishing feature, allowing them to publish reports immediately to HackerOne - 88 upvotes, $2500
  62. Reading redacted data via hackbot's answers to HackerOne - 85 upvotes, $1500
  63. Team object in GraphQL disclosed total number of whitelisted hackers to HackerOne - 84 upvotes, $2500
  64. Unauthenticated user can upload an attachment to the last updated report draft to HackerOne - 80 upvotes, $0
  65. Password not checked when disabling 2FA on HackerOne to HackerOne - 79 upvotes, $500
  66. "Bounties paid in the last 90 days" discloses the undisclosed bounty amount in program statistics to HackerOne - 78 upvotes, $500
  67. Security@ email forwarding and Embedded Submission drafts can be used to obtain copy of deleted attachments from other HackerOne users to HackerOne - 78 upvotes, $0
  68. Improper UUID validation results in bypass of #419896 to HackerOne - 77 upvotes, $7500
  69. Subdomain takeover #2 at info.hacker.one to HackerOne - 76 upvotes, $1000
  70. latest_activity_id and latest_activity_at may disclose information about internal activities to unauthorized users to HackerOne - 74 upvotes, $1000
  71. Denial Of Service (Out Of Memory) on Updating Bounty Table [Urgent] to HackerOne - 73 upvotes, $0
  72. A HackerOne employee's GitHub personal access token exposed in Travis CI build logs to HackerOne - 72 upvotes, $2000
  73. Private information exposed through GraphQL filters to HackerOne - 72 upvotes, $0
  74. Pentester can obtain information about other pentesters who applied for the same test, but weren't accepted to HackerOne - 71 upvotes, $500
  75. Near to Infinite loop when changing Group's name that has API token as Team Member to HackerOne - 70 upvotes, $2500
  76. Homograph fix Bypass to HackerOne - 70 upvotes, $750
  77. Race Condition in Flag Submission to HackerOne - 70 upvotes, $500
  78. Team object in GraphQL discloses team group names and permissions to HackerOne - 69 upvotes, $2500
  79. The request tells the number of private programs, the new system of authorization /invite/token to HackerOne - 69 upvotes, $2000
  80. Reporter, external users, collaborators can mark sent swag awarded to reporter as unsent to HackerOne - 68 upvotes, $0
  81. Potential stored Cross-Site Scripting vulnerability in Support Backend to HackerOne - 68 upvotes, $0
  82. Deprecated Hacker101 coursework repository mentions Heroku App that is susceptible to takeover to HackerOne - 67 upvotes, $500
  83. Team object in GraphQL disclosed of private programs via the industry to HackerOne - 67 upvotes, $500
  84. The hacker has access to the administrative part of the management reports in publish report to HackerOne - 67 upvotes, $500
  85. Validation message in Bounty award endpoint can be used to determine program balances to HackerOne - 66 upvotes, $1500
  86. Inline banner on Report page discloses whether organization runs a private program to HackerOne - 66 upvotes, $500
  87. Making program preference -> program visibilty feature usless and disclosing API Identifier in the progress and data that may cause potential IDORS. to HackerOne - 64 upvotes, $500
  88. Blind Stored XSS in HackerOne's Sal 4.1.4.2149 (sal.████.com) to HackerOne - 64 upvotes, $0
  89. HTTP Parameter Pollution using semicolons in iframe element at hackerone.com/careers allows loading external Greenhouse forms to HackerOne - 63 upvotes, $500
  90. An invite-only's program submission state is accessible to users no longer part of the program to HackerOne - 63 upvotes, $500
  91. Login CSRF vulnerability on hackerone.com to HackerOne - 63 upvotes, $500
  92. Query parameter reordering causes redirect page to render unsafe URL to HackerOne - 61 upvotes, $1500
  93. Race condition leads to duplicate payouts to HackerOne - 60 upvotes, $750
  94. Disclosure of Email title report in quick award paypout email (no content mode) to HackerOne - 60 upvotes, $500
  95. Program metrics disclosed response_efficiency_percentage via /program_name json response despite the team decided not to show on their profile to HackerOne - 59 upvotes, $2500
  96. Report Private Links Leaks to Google Analytics via Query String Param to HackerOne - 59 upvotes, $0
  97. Any user with access to program can resume and suspend HackerOne Gateway to HackerOne - 59 upvotes, $0
  98. Team object exposes amount of participants in a private program to non-invited users to HackerOne - 57 upvotes, $5000
  99. Subdomain takeover #3 at info.hacker.one to HackerOne - 57 upvotes, $1000
  100. TeamProfile exposes partially sensitive information through GraphQL to HackerOne - 57 upvotes, $500
  101. Unauthenticated users can obtain information about Checklist objects with unclaimed ChecklistCheck objects to HackerOne - 57 upvotes, $0
  102. Invalid Host detection at https://hackerone.com/redirect to HackerOne - 56 upvotes, $500
  103. Bypass rate limiting on /users/password (possibly site-wide rate limit bypass?) to HackerOne - 54 upvotes, $500
  104. IDOR in Report CSV export discloses the IDs of Custom Field Attributes of Programs to HackerOne - 53 upvotes, $0
  105. Private program policy page still accessible after user left the program to HackerOne - 52 upvotes, $2500
  106. Extra program metrics disclosed via /PROGRAM_NAME json response to HackerOne - 51 upvotes, $500
  107. Stored XSS on https://events.hackerone.com to HackerOne - 51 upvotes, $0
  108. Websites opened from reports can change url of report page to HackerOne - 50 upvotes, $500
  109. Email Forwarding invitations for Drafts are not marked as accepted, allowing multiple users to join a program after disabling Email Forwarding to HackerOne - 50 upvotes, $500
  110. Open Redirection in index.php page to HackerOne - 50 upvotes, $250
  111. IDOR on HackerOne Feedback Review to HackerOne - 50 upvotes, $0
  112. Subdomain takeover #4 at info.hacker.one to HackerOne - 49 upvotes, $500
  113. View HackerOne challenge scope before challenge begins to HackerOne - 47 upvotes, $500
  114. Total bounties paid amount is disclosed because of redesign of the Program Profiles to HackerOne - 47 upvotes, $500
  115. Embedded submission form UUIDs can be enumerated through GraphQL node interface, exposing sensitive program details to HackerOne - 46 upvotes, $0
  116. Custom Field Attributes may be created and updated for customers with Custom Field Trial enabled to HackerOne - 45 upvotes, $0
  117. Open Redirect on http://events.hackerone.com/redirect?url=https://naglinagli.github.io to HackerOne - 45 upvotes, $0
  118. Pixel flood attack to HackerOne - 44 upvotes, $500
  119. Domain spoofing in redirect page using RTLO to HackerOne - 44 upvotes, $500
  120. Hogging up all the resources on hackerone.com to HackerOne - 44 upvotes, $500
  121. Adding or removing a new non-preferred payout method does not trigger an e-mail or account notification to HackerOne - 43 upvotes, $500
  122. Content Security Policy not applied to error pages at multiple HackerOne endpoints to HackerOne - 43 upvotes, $500
  123. ImageMagick GIF coder vulnerability leading to memory disclosure to HackerOne - 43 upvotes, $500
  124. Response program can display "eligible for bounty" in scope area in program policy to HackerOne - 43 upvotes, $500
  125. Race condition in claiming program credentials to HackerOne - 43 upvotes, $500
  126. Disclosing a private program in an external link if program is paused to HackerOne - 43 upvotes, $500
  127. Disclosure of the name of a program that has a private part with an external link to HackerOne - 43 upvotes, $500
  128. HackerOne support disclosing report state without checking user identity to HackerOne - 42 upvotes, $500
  129. API Last Request Date/Time Not Updating to HackerOne - 42 upvotes, $0
  130. Google Analytics could be used as CSP bypass for data exfiltration on hackerone.com to HackerOne - 41 upvotes, $500
  131. Repeated mediation requests and multiple emails possible on a report. to HackerOne - 41 upvotes, $500
  132. "Bounty splitting enabled" can discloses if public VDPs are running private VRP to HackerOne - 41 upvotes, $500
  133. IE 11 Self-XSS on Jira Integration Preview Base Link to HackerOne - 40 upvotes, $750
  134. User with privilege to maintain External Programs can update certain churned HackerOne programs to HackerOne - 40 upvotes, $500
  135. GraphQL node interface for ActiveResource models lacks encoding for resource identifier, enabling parameter injection in Payments backend to HackerOne - 40 upvotes, $0
  136. Proper verification is not done before sending invitations to researchers for certain private programs with rules e.g. "Participants must be US-based" to HackerOne - 39 upvotes, $2500
  137. Parameter pollution in social sharing buttons to HackerOne - 39 upvotes, $500
  138. Disclosure of Program email Title Report when being removed as contributor. Bypass for Report #645264 to HackerOne - 39 upvotes, $500
  139. (HackerOne SSO-SAML) Login CSRF, Open Redirect, and Self-XSS Possible Exploitation to HackerOne - 39 upvotes, $0
  140. Open redirect vulnerability in index.php to HackerOne - 39 upvotes, $0
  141. Hacktivity of a private program visible to banned user if he gets invited to a program by hackbot to HackerOne - 38 upvotes, $500
  142. Disclosure of top 10 vulnerability types for programs that haven't enabled the Insights feature to HackerOne - 38 upvotes, $500
  143. HackerOne customer submitted sensitive link to VirusTotal, exposing confidential information to HackerOne - 38 upvotes, $350
  144. Path traversal leading to limited CSRF on GET requests on two endpoints to HackerOne - 37 upvotes, $500
  145. Team object in GraphQL that have a published external program may expose existence of a private program to HackerOne - 37 upvotes, $0
  146. Common response suggestion is sent to Google Analytics when user accepts duplicate comment Genius suggestion to HackerOne - 36 upvotes, $500
  147. Revoking user session in https://hackerone.com/settings/sessions does not revoke the GraphQL query session to HackerOne - 36 upvotes, $500
  148. Private program email forwarding response invitation not expire after first use. to HackerOne - 36 upvotes, $0
  149. Updating payout preference to CurrencyCloud doesn't notify user via email to HackerOne - 35 upvotes, $500
  150. User login page doesn't implement any form of rate limiting to HackerOne - 35 upvotes, $500
  151. Report invitation links not restricted to any existing user to HackerOne - 34 upvotes, $500
  152. HackerOne Integrations Design Issue to HackerOne - 34 upvotes, $500
  153. AWS S3 bucket writeable for authenticated aws users to HackerOne - 33 upvotes, $2500
  154. Missing SPF for hackerone.com to HackerOne - 33 upvotes, $500
  155. HackerOne reports escalation to JIRA is CSRF vulnerable to HackerOne - 33 upvotes, $500
  156. Invitation token leaks to https://bat.bing.com to HackerOne - 33 upvotes, $500
  157. Changing Victim's JIRA Integration Settings Through Multiple Bugs to HackerOne - 32 upvotes, $1000
  158. Information leakage of private program to HackerOne - 32 upvotes, $500
  159. Accidental Access to Programs Information via SAML Login to HackerOne - 32 upvotes, $0
  160. Open Redirection in [https://www.hackerone.com/index.php] to HackerOne - 32 upvotes, $0
  161. View Any Program's Team Members through GET https://hackerone.com/invitations/ to HackerOne - 31 upvotes, $1000
  162. Program Email Nofication settings ignored when being added as an external contributor to HackerOne - 31 upvotes, $500
  163. Ability to invite a new member on Sandbox Program to HackerOne - 31 upvotes, $500
  164. Internal usage of AdBlockPlus may expose PoC URLs to unknown third-parties to HackerOne - 31 upvotes, $0
  165. Timing attack towards endpoints on the web without CSRF to HackerOne - 31 upvotes, $0
  166. RCE in profile picture upload to HackerOne - 30 upvotes, $2500
  167. Non-secure requests are not automatically upgraded to HTTPS to HackerOne - 30 upvotes, $500
  168. CSRF at [Apply to this program] that lead to submit your request automatic with out any validations to HackerOne - 30 upvotes, $500
  169. Response program can create bounty table to HackerOne - 30 upvotes, $500
  170. Attacker can claim credentials for private program that has a published external program to HackerOne - 30 upvotes, $0
  171. A small set of users were assigned someone else's payout preference to HackerOne - 30 upvotes, $0
  172. Information leakage via CSV when content is valid JavaScript to HackerOne - 29 upvotes, $750
  173. Invitation tokens leak to Google Analytics to HackerOne - 29 upvotes, $0
  174. HackerOne Pentesters can access any structured scope object through GraphQL node interface to HackerOne - 29 upvotes, $0
  175. Reflected XSS and possible SSRF/XXE on https://events.hackerone.com/conferences/get_recording_slides_xml.xml?url=myserver/xss.xml to HackerOne - 28 upvotes, $0
  176. Program profile metrics endpoint contains mean time to triage, even when turned off to HackerOne - 27 upvotes, $500
  177. Disclosure of h1 challenges name through the calendar to HackerOne - 27 upvotes, $500
  178. Report redaction doesn't apply to report title update activities to HackerOne - 27 upvotes, $0
  179. Blind SSRF in "Integrations" by abusing a bug in Ruby's native resolver. to HackerOne - 27 upvotes, $0
  180. Upload profile photo from URL to HackerOne - 26 upvotes, $500
  181. Program profile_metrics.json contains time to triage for deptofdefense even it's turned off to HackerOne - 26 upvotes, $250
  182. resolved bugs in a program are public despite the program settings to HackerOne - 25 upvotes, $500
  183. Submitting report through Embedded Submission form gives user indefinite access to a profile to HackerOne - 25 upvotes, $500
  184. GIF flooding to HackerOne - 25 upvotes, $250
  185. Unicorn worker pool exhaustion by continuously updating payout preferences to HackerOne - 25 upvotes, $0
  186. IDOR in Bugs overview enables attacker to determine the date range a hackathon was active to HackerOne - 25 upvotes, $0
  187. Transitioning a Private Program to Public Does Not Clear Previously Private Updates to Hackers to HackerOne - 24 upvotes, $500
  188. Real impersonation to HackerOne - 24 upvotes, $100
  189. Able To Check The Exact Bounty Balance of any Bug Bounty Program to HackerOne - 24 upvotes, $0
  190. Read-only team members can read all properties of webhooks to HackerOne - 24 upvotes, $0
  191. A team member of the program with Report rights can ban the Admin to HackerOne - 24 upvotes, $0
  192. People who interviewed for HackerOne security analyst position can be enumerated and their personal email address may be exposed to HackerOne - 23 upvotes, $500
  193. A user can request a report to be retested even though the program has not been verified by HackerOne to HackerOne - 23 upvotes, $500
  194. Email spoofing to HackerOne - 23 upvotes, $250
  195. Can read features from any user to HackerOne - 23 upvotes, $250
  196. Ability to enumerate private programs using SAML to HackerOne - 23 upvotes, $0
  197. User object in GraphQL exposes number of trial reports for External Programs that also have a Private Program to HackerOne - 23 upvotes, $0
  198. Lack of input sanitization in Marketo form leads to execution of HTML in lead emails to HackerOne - 22 upvotes, $500
  199. Disabled account can still use GraphQL endpoint to HackerOne - 22 upvotes, $500
  200. Self DOM-Based XSS in www.hackerone.com to HackerOne - 22 upvotes, $0
  201. program_analytics_benchmarks query shows information not visible in public to HackerOne - 21 upvotes, $500
  202. Dangling cloud instance at vpn.inverselink.com to HackerOne - 21 upvotes, $500
  203. DNS Cache Poisoning to HackerOne - 21 upvotes, $100
  204. Hackerone Email Addresses Enumeration to HackerOne - 21 upvotes, $0
  205. report id is exposed for undisclosed reports in Hacktivity to HackerOne - 21 upvotes, $0
  206. Information Disclosure when /invitations/<token>.json is not yet accepted to HackerOne - 21 upvotes, $0
  207. Stored Cross-Site Scripting vulnerability in example Custom Digital Agreement to HackerOne - 21 upvotes, $0
  208. HackerOne is still prone to Internet Explorer UXSS to HackerOne - 20 upvotes, $0
  209. CRLF injection in info.hacker.one to HackerOne - 20 upvotes, $0
  210. IDOR on Program Visibilty (Revealed / Concealed) against other team members to HackerOne - 20 upvotes, $0
  211. Know undisclosed Bounty Amount when Bounty Statistics are enabled. to HackerOne - 19 upvotes, $500
  212. Hacker can request mediation for published reports to HackerOne - 19 upvotes, $500
  213. Notifications sent due to "Transfer report" functionality may be sent to users who are no longer authorized to see the report to HackerOne - 19 upvotes, $500
  214. Homograph attack in escalate report to HackerOne - 19 upvotes, $500
  215. SAML Response Reuse on hackerone.com/users/saml/auth to HackerOne - 19 upvotes, $500
  216. Switching the user to the attacker's account to HackerOne - 18 upvotes, $150
  217. Broken Authentication and session management OWASP A2 to HackerOne - 18 upvotes, $100
  218. Session not expired on logout to HackerOne - 18 upvotes, $100
  219. Able to create basic user account via Google login on HackerOne Drupal CMS to HackerOne - 18 upvotes, $0
  220. Insecure SHA1withRSA in b5s.hackerone-ext-content.com and a4l.hackerone-ext-content.com to HackerOne - 18 upvotes, $0
  221. Missing Certificate Authority Authorization rule to HackerOne - 18 upvotes, $0
  222. Additional bypass allows SSRF for internal netblocks to HackerOne - 18 upvotes, $0
  223. Interstitial redirect bypass / open redirect in https://hackerone.com/zendesk_session to HackerOne - 17 upvotes, $500
  224. Previous attachments can be referenced when creating a new report to HackerOne - 17 upvotes, $500
  225. Enumeration of users to HackerOne - 17 upvotes, $0
  226. Private partial disclosure of h1 infrastructure to HackerOne - 17 upvotes, $0
  227. Corrupted Authorization header can cause logs not to be ingested properly in ████████ to HackerOne - 17 upvotes, $0
  228. Session hijacking attack to HackerOne - 17 upvotes, $0
  229. CSP not consistently applied to HackerOne - 16 upvotes, $250
  230. Information disclosure (reset password token) and changing the user's password to HackerOne - 16 upvotes, $100
  231. Improper session management to HackerOne - 16 upvotes, $100
  232. Possible CSRF during joining report as participant to HackerOne - 16 upvotes, $0
  233. Example HackerOne security@ forward domain is not registered to HackerOne - 16 upvotes, $0
  234. www.hackerone.com website CSP "script-src" includes "unsafe-inline" to HackerOne - 16 upvotes, $0
  235. Exposing hackerone users personally identifiable information by abusing sandbox with swag reward enabled to HackerOne - 16 upvotes, $0
  236. Lack of length validation on user address attribute to HackerOne - 16 upvotes, $0
  237. Rounding errors on rewarding a bounty leads to bypassing the 20% H1 commission fee to HackerOne - 16 upvotes, $0
  238. Vulnerability with the way \ escaped characters in <http://danlec.com> style links are rendered to HackerOne - 15 upvotes, $5000
  239. Homograph attack to HackerOne - 15 upvotes, $500
  240. Know whether private program for company exist or not to HackerOne - 15 upvotes, $500
  241. Invalid Phabricator API token revealed through error message when escalating a report to HackerOne - 15 upvotes, $500
  242. Invited team member can disclosure slack channels to HackerOne - 15 upvotes, $500
  243. Ability to monitor reports' submission in real time to HackerOne - 15 upvotes, $0
  244. Limited Open redirection using SSO-SAML to HackerOne - 15 upvotes, $0
  245. Submitted reports state logs leakage to HackerOne - 15 upvotes, $0
  246. Improperly validated fields allows injection of arbitrary HTML via spoofed React objects to HackerOne - 14 upvotes, $5000
  247. Graphql: Sorting the reports by jira_status field resulted to different value to HackerOne - 14 upvotes, $550
  248. HTML injection can lead to data theft to HackerOne - 14 upvotes, $500
  249. Old titles are not hidden in reports with limited disclosure to HackerOne - 14 upvotes, $500
  250. Report title and issue information prepopulated to HackerOne - 14 upvotes, $0
  251. Users contents on AWS is cacheable to HackerOne - 14 upvotes, $0
  252. Lack of cross-origin request blocking allows leaking of sensitive information on several endpoints to HackerOne - 14 upvotes, $0
  253. Attacker may be able to bounce enough emails which suspend HackerOne's SES service and cause a DoS of HackerOne's email service to HackerOne - 14 upvotes, $0
  254. Unintended HTML inclusion as a result of https://hackerone.com/reports/110578 to HackerOne - 13 upvotes, $500
  255. Able to remove the admin access of my program to HackerOne - 13 upvotes, $500
  256. CSRF login to HackerOne - 13 upvotes, $100
  257. Obtain the username & the uid of the one doing the S3 sync on Hackerone to HackerOne - 13 upvotes, $0
  258. Researcher gets email updates on a private program after he/she quits that program. to HackerOne - 13 upvotes, $0
  259. Introspection query leaks sensitive graphql system information. to HackerOne - 13 upvotes, $0
  260. Changes to data in a CVE request after draft via GraphQL query to HackerOne - 13 upvotes, $0
  261. HTTP header injection in info.hackerone.com allows setting cookies for hackerone.com to HackerOne - 12 upvotes, $1000
  262. Flawed account creation process allows registration of usernames corresponding to existing file names to HackerOne - 12 upvotes, $0
  263. GitHub users outside of HackerOne organization can create and update Wiki pages of certain public HackerOne repositories to HackerOne - 12 upvotes, $0
  264. Missing Certificate Authority Authorization rule to HackerOne - 12 upvotes, $0
  265. Markdown parsing issue enables insertion of malicious tags and event handlers to HackerOne - 11 upvotes, $5000
  266. PNG compression DoS to HackerOne - 11 upvotes, $500
  267. Requesting Mediation possible on reports that are too old for mediation to HackerOne - 11 upvotes, $500
  268. javascript: and mailto: links are allowed in JIRA integration settings to HackerOne - 11 upvotes, $100
  269. Login page password-guessing attack to HackerOne - 11 upvotes, $0
  270. Inadequate access controls in "Vote" functionality??? to HackerOne - 11 upvotes, $0
  271. Possible CSRF during external programs to HackerOne - 11 upvotes, $0
  272. Verbose PHP error messages exposed on a blog article to HackerOne - 11 upvotes, $0
  273. Missing rate limit on critical user actions e.g. reset password, change email, disable account. to HackerOne - 11 upvotes, $0
  274. Moving a report to a different program doesn't reassign the Custom Field Values to HackerOne - 11 upvotes, $0
  275. CSRF possible when SOP Bypass/UXSS is available to HackerOne - 10 upvotes, $2500
  276. Logical issues with account settings to HackerOne - 10 upvotes, $150
  277. Unauthorized Team members viewing to HackerOne - 10 upvotes, $0
  278. homograph attack. IDNs displayed in unicode in bug reports and on external link warning page to HackerOne - 9 upvotes, $500
  279. CSV Injection at the CSV export feature to HackerOne - 9 upvotes, $500
  280. DNS Misconfiguration to HackerOne - 9 upvotes, $100
  281. Privilege escalation..., or not?! to HackerOne - 9 upvotes, $0
  282. Manipulate report timeline activity by using null byte. to HackerOne - 9 upvotes, $0
  283. RTL override symbol not stripped from file names to HackerOne - 8 upvotes, $500
  284. Open redirect in "Language change". to HackerOne - 8 upvotes, $500
  285. Disclosure of external users invited to a specific report to HackerOne - 8 upvotes, $500
  286. Session not invalidated after password reset to HackerOne - 8 upvotes, $100
  287. All Active user sessions should be deleted when user change his password! to HackerOne - 8 upvotes, $100
  288. LinkedIN URL should be HTTPS to HackerOne - 8 upvotes, $0
  289. Reward Money Leakage to HackerOne - 8 upvotes, $0
  290. Information disclosure via policy update notifications after removal from program to HackerOne - 8 upvotes, $0
  291. Search query text, including from potentially undisclosed reports, sent to Google Analytics on Inbox query page to HackerOne - 8 upvotes, $0
  292. GraphQL sessions aren't immediately invalidated when user password is changed to HackerOne - 8 upvotes, $0
  293. While adding a payment method - Notification email not sent to newly added email ID as well as there is no verification for new email id (Paypal) to HackerOne - 8 upvotes, $0
  294. CSP Bypass: Click handler for links with data-method="post" can cause authenticity_token to be sent off domain to HackerOne - 7 upvotes, $2000
  295. Limited CSRF bypass. to HackerOne - 7 upvotes, $500
  296. New hacktivity view discloses report IDs of non-public reports to HackerOne - 7 upvotes, $500
  297. CSS leaks SCSS debug info to HackerOne - 7 upvotes, $100
  298. Control Characters Not Stripped From Username on Signup to HackerOne - 7 upvotes, $100
  299. Private Program all members disclosed to HackerOne - 7 upvotes, $0
  300. Missing Password Confirmation at a Critical Function (Payout Method) to HackerOne - 7 upvotes, $0
  301. Leakage badges on disabled user to HackerOne - 7 upvotes, $0
  302. Private program activity timeline information disclosure to HackerOne - 6 upvotes, $5000
  303. External programs revealing info to HackerOne - 6 upvotes, $1500
  304. Ability to see common response titles of other teams (limited) to HackerOne - 6 upvotes, $1000
  305. Pre-generation of 2FA secret/backup codes seems like an unnecessary risk to HackerOne - 6 upvotes, $1000
  306. File Name Enumeration to HackerOne - 6 upvotes, $500
  307. Gain reputation by creating a duplicate of an existing report to HackerOne - 6 upvotes, $500
  308. CSV Injection with the CVS export feature to HackerOne - 6 upvotes, $500
  309. Improve signals in reputation to HackerOne - 6 upvotes, $500
  310. Increase number of bugs by sending duplicate of your own valid report to HackerOne - 6 upvotes, $500
  311. Flawed account creation process allows registration of usernames corresponding to existing file names to HackerOne - 6 upvotes, $100
  312. Autocomplete enabled in Paypal preferences to HackerOne - 6 upvotes, $100
  313. External links should use rel="noopener" or use the redirect service to HackerOne - 6 upvotes, $0
  314. Reputation Manipulation (Theoretical) to HackerOne - 6 upvotes, $0
  315. Ajouter le même utilisateur que celui déjà inscrit dans les équipes to HackerOne - 6 upvotes, $0
  316. Information leakage - Private reports cached by Google to HackerOne - 6 upvotes, $0
  317. Weird Bug - Ability to see partial of other user's notification to HackerOne - 5 upvotes, $500
  318. Redirect while opening links in new tabs to HackerOne - 5 upvotes, $500
  319. No email verification on username change to HackerOne - 5 upvotes, $500
  320. Logic Issue with Reputation: Boost Reputation Points to HackerOne - 5 upvotes, $500
  321. Team Member███ associated with a Custom Group Created with 'Program Managment' only permissions can Comments on Bug Reports to HackerOne - 5 upvotes, $500
  322. Multiple issues with Markdown and URL parsing to HackerOne - 5 upvotes, $500
  323. Websites opened from reports can change url of report page to HackerOne - 5 upvotes, $500
  324. Adding an user email address to the list before confirming. to HackerOne - 5 upvotes, $0
  325. Session Hijacking attack (Different Scenario) to HackerOne - 5 upvotes, $0
  326. "learn more here", reward email - domain expired. to HackerOne - 5 upvotes, $0
  327. javascript: and mailto: links are allowed on users' profiles to HackerOne - 5 upvotes, $0
  328. Report title autocompletion to HackerOne - 5 upvotes, $0
  329. In markdown, parsing things like @danlec and #46072 after links is unsafe to HackerOne - 5 upvotes, $0
  330. Denial of Service any Report to HackerOne - 5 upvotes, $0
  331. Deleted name still present via mouseover functionality for user accounts to HackerOne - 5 upvotes, $0
  332. Reflected Filename Download to HackerOne - 5 upvotes, $0
  333. Reflected File Download to HackerOne - 5 upvotes, $0
  334. DOS Report FILE html inside <code> in markdown to HackerOne - 5 upvotes, $0
  335. Open redirect deceive in hackerone.com via another open redirect link. to HackerOne - 5 upvotes, $0
  336. Partial disclosure of undisclosed programs through <meta> tags to HackerOne - 5 upvotes, $0
  337. Information disclosure to HackerOne - 5 upvotes, $0
  338. Mismatch between frontend and backend validation via ban_researcher leads to H1 support and hackers email spam to HackerOne - 5 upvotes, $0
  339. Send AJAX request to external domain to HackerOne - 4 upvotes, $2500
  340. Cross-domain AJAX request to HackerOne - 4 upvotes, $2500
  341. Insecure Direct Object Reference vulnerability to HackerOne - 4 upvotes, $500
  342. Team Member(s) associated with a Group have Read-only permission (Post internal comments) can post comment to all the participants to HackerOne - 4 upvotes, $500
  343. Private Program Disclosure in /:handle/reports/draft.json endpoint to HackerOne - 4 upvotes, $500
  344. Private Program Disclosure in /:handle/settings/allow_report_submission.json endpoint to HackerOne - 4 upvotes, $500
  345. New hacktivity view discloses report IDs of non-public reports to HackerOne - 4 upvotes, $500
  346. Session Management to HackerOne - 4 upvotes, $100
  347. Anti-MIME-Sniffing header X-Content-Type-Options header has not been set. to HackerOne - 4 upvotes, $100
  348. Flooding mailbox of user to HackerOne - 4 upvotes, $0
  349. Email changing to HackerOne - 4 upvotes, $0
  350. "early preview" programs disclosure to HackerOne - 4 upvotes, $0
  351. Markdown code block sequence makes report unreadable to HackerOne - 4 upvotes, $0
  352. profile cover can also load external URL's to HackerOne - 4 upvotes, $0
  353. Null byte injection to HackerOne - 4 upvotes, $0
  354. Race Conditions Exist When Accepting Invitations to HackerOne - 4 upvotes, $0
  355. Information Disclosure which violate program privacy to HackerOne - 4 upvotes, $0
  356. SPF whitelist of mandrill leads to email forgery to HackerOne - 3 upvotes, $1000
  357. Edit Auto Response Messages to HackerOne - 3 upvotes, $1000
  358. Redirect FILTER bypass in report/comment to HackerOne - 3 upvotes, $500
  359. Making any Report Failed to load to HackerOne - 3 upvotes, $500
  360. Accessing title of the report of which you are marked as duplicate to HackerOne - 3 upvotes, $500
  361. CSV Injection via the CSV export feature to HackerOne - 3 upvotes, $500
  362. Disclosure of private programs that have an "external" page on HackerOne to HackerOne - 3 upvotes, $500
  363. Putting link inside link in markdown to HackerOne - 3 upvotes, $500
  364. creating titleless and non-closable bugs to HackerOne - 3 upvotes, $150
  365. A password reset page does not properly validate the authenticity token at the server side. to HackerOne - 3 upvotes, $100
  366. Securing sensitive pages from SearchBots to HackerOne - 3 upvotes, $100
  367. Category- Broken Authentication and Session Management (leads to account compromise if some conditions are met) to HackerOne - 3 upvotes, $100
  368. Password Reset Bug to HackerOne - 3 upvotes, $100
  369. Potential denial of service in hackerone.com/<program>/reward_settings to HackerOne - 3 upvotes, $100
  370. harvesting attack on user registration to HackerOne - 3 upvotes, $0
  371. Account takeover to HackerOne - 3 upvotes, $0
  372. HTTPS is not enforced for objects stored by HackerOne on Amazon S3 to HackerOne - 3 upvotes, $0
  373. Missing spf flags for hackerone.com to HackerOne - 3 upvotes, $0
  374. Enumeration/Guess of Private (Invited) Programs to HackerOne - 3 upvotes, $0
  375. Homograph Attack to HackerOne - 3 upvotes, $0
  376. Logical Issue (Boosting Reputation points) to HackerOne - 3 upvotes, $0
  377. Minimum bounty of a private program is visible for users that were removed from the program to HackerOne - 3 upvotes, $0
  378. attack in not an authorized user to HackerOne - 3 upvotes, $0
  379. Email Address Leak to HackerOne - 3 upvotes, $0
  380. Accepting Invalid characters on email address to HackerOne - 3 upvotes, $0
  381. Signals get affected once reports closed as self to HackerOne - 3 upvotes, $0
  382. Issue with password change in Disabled Account to HackerOne - 3 upvotes, $0
  383. Window Opener Property Bug to HackerOne - 2 upvotes, $500
  384. Improper way of validating a program to HackerOne - 2 upvotes, $500
  385. Team member invitations to sandboxed teams are not invalidated consistently (v2) to HackerOne - 2 upvotes, $500
  386. Open-redirect on hackerone.com to HackerOne - 2 upvotes, $500
  387. Homograph attack to HackerOne - 2 upvotes, $500
  388. Content Spoofing - External Link Warning Page to HackerOne - 2 upvotes, $500
  389. Issue with password change to HackerOne - 2 upvotes, $500
  390. Logic error with notifications: user that has left team continues to receive notifications and can not 'clean' this area on account to HackerOne - 2 upvotes, $500
  391. mailto: link injection on https://hackerone.com/directory to HackerOne - 2 upvotes, $500
  392. Number of invited researchers disclosed as part of JSON search response to HackerOne - 2 upvotes, $500
  393. Distinguish EP+Private vs Private programs in HackerOne to HackerOne - 2 upvotes, $500
  394. CSV Injection via the CSV export feature to HackerOne - 2 upvotes, $500
  395. Mediation link can be accepted by other users to HackerOne - 2 upvotes, $500
  396. SECURITY: Referencing previous Reports attachment_IDs on new Reports via Draft_Sync DELETES Attachments to HackerOne - 2 upvotes, $500
  397. Issue with remember_user_token to HackerOne - 2 upvotes, $150
  398. Change Any username and profile link in hackerone to HackerOne - 2 upvotes, $100
  399. Denial of Service to HackerOne - 2 upvotes, $100
  400. Marking notifications as read CSRF bug to HackerOne - 2 upvotes, $100
  401. Criptographic Issue: Strisct Transport Security with not good max age..(TOO SHORT!) to HackerOne - 2 upvotes, $0
  402. Arbitrary file uploads to Amazon WS. to HackerOne - 2 upvotes, $0
  403. No option to logout concurrent sessions to HackerOne - 2 upvotes, $0
  404. Restrict any user from logging into his account. to HackerOne - 2 upvotes, $0
  405. (lack of) smtp transport layer security to HackerOne - 2 upvotes, $0
  406. Minor Bug: Public un-compiled CSS with original sass, versioning, source map, comments, etc. to HackerOne - 2 upvotes, $0
  407. Content spoofing on invitations page to HackerOne - 2 upvotes, $0
  408. Sending emails (via HackerOne) impersonating other users to HackerOne - 2 upvotes, $0
  409. Abusing HOF rankings in limited circumstances to HackerOne - 2 upvotes, $0
  410. Possible XSS to HackerOne - 2 upvotes, $0
  411. Add text to the title of the page "Thanks" to HackerOne - 2 upvotes, $0
  412. Spamming any user from Reset Password Function to HackerOne - 2 upvotes, $0
  413. HackerOne Important Emails Notification are sent in clear-text to HackerOne - 2 upvotes, $0
  414. Content Spoofing via reports to HackerOne - 2 upvotes, $0
  415. Reverse Tabnabbing Vulnerability in Outgoing Links to HackerOne - 2 upvotes, $0
  416. Reputation gain split by company can be used to track the existence of otherwise undisclosed reports to HackerOne - 2 upvotes, $0
  417. Breaking Bugs as team member to HackerOne - 1 upvotes, $500
  418. Team member invitations to sandboxed teams are not invalidated consistently to HackerOne - 1 upvotes, $500
  419. Fake URL + Additional vectors for homograph attack to HackerOne - 1 upvotes, $500
  420. External URL page bypass to HackerOne - 1 upvotes, $500
  421. Reopen Disable Accounts/ Hidden Access After Disable to HackerOne - 1 upvotes, $500
  422. Invitation is not properly cancelled while inviting to bug reports. to HackerOne - 1 upvotes, $500
  423. Private Program and bounty details disclosed as part of JSON search response to HackerOne - 1 upvotes, $500
  424. User with Read-Only permissions can request/approve public disclosure to HackerOne - 1 upvotes, $500
  425. User with Read-Only permissions can edit the Internal comment Activities on Bug Reports After Revoke the team access permissions to HackerOne - 1 upvotes, $500
  426. User with Read-Only permissions can manually public disclosure the report to HackerOne - 1 upvotes, $500
  427. Internal bounty and swag details disclosed as part of JSON response to HackerOne - 1 upvotes, $500
  428. Potential denial of service in hackerone.com/teams/new to HackerOne - 1 upvotes, $100
  429. Improper filtering of classes used in codeblocks in Markdown to HackerOne - 1 upvotes, $0
  430. Cache leads to Privacy leaks to HackerOne - 1 upvotes, $0
  431. Account Hijacking (Only rare case scenario) to HackerOne - 1 upvotes, $0
  432. Notification of previous signed out user leakage. to HackerOne - 1 upvotes, $0
  433. Auto Approval of Invitation to join Team as a Team member to HackerOne - 1 upvotes, $0
  434. Substantially weakened authenticity verification when using 'Remember me for a week' to HackerOne - 1 upvotes, $0
  435. Reflected File Download attack allows attacker to 'upload' executables to hackerone.com domain to HackerOne - 1 upvotes, $0
  436. Email Notification should be get while changing Paypal Email to HackerOne - 1 upvotes, $0
  437. Weak HSTS age in support hackerone site to HackerOne - 1 upvotes, $0
  438. Hackerone impersonation to HackerOne - 1 upvotes, $0
  439. HackerOne Private Programs users disclosure and de-anonymous-ize to HackerOne - 1 upvotes, $0
  440. Requesting unknown file type returns Ruby object w/ address to HackerOne - 1 upvotes, $0
  441. User with Read-Only permissions can edit the SwagAwarded Activities on Bug Reports to HackerOne - 1 upvotes, $0
  442. Redirection Page throwing error instead of redirecting to site to HackerOne - 1 upvotes, $0
  443. URL Crashing browser. {Tested on firefox, Chrome and Safari} to HackerOne - 1 upvotes, $0
  444. Denial of service in report view. to HackerOne - 1 upvotes, $0
  445. Pending member invitations are not revoked on program name change to HackerOne - 1 upvotes, $0

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