WS-2021-0406 (Medium) detected in tinymce-5.4.2.tgz

[mend-bolt-for-github]

WS-2021-0406 - Medium Severity Vulnerability

Vulnerable Library - tinymce-5.4.2.tgz

Web based JavaScript HTML WYSIWYG editor control.

Library home page: https://registry.npmjs.org/tinymce/-/tinymce-5.4.2.tgz

Path to dependency file: /web-library/package.json

Path to vulnerable library: /web-library/node_modules/tinymce/package.json

Dependency Hierarchy:

• ❌ tinymce-5.4.2.tgz (Vulnerable Library)

Found in base branch: main

Vulnerability Details

A cross-site scripting (XSS) vulnerability was discovered in the schema validation logic of the core parser. The vulnerability allowed arbitrary JavaScript execution when inserting a specially crafted piece of content into the editor using the clipboard or editor APIs. This malicious content could then end up in content published outside the editor, if no server-side sanitization was performed. This impacts all users who are using TinyMCE 5.8.2 or lower.

Publish Date: 2021-10-22

URL: WS-2021-0406

CVSS 3 Score Details (6.1)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Changed
• Impact Metrics:
  • Confidentiality Impact: Low
  • Integrity Impact: Low
  • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-5h9g-x5rv-25wg

Release Date: 2021-10-22

Fix Resolution: 5.9.0

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