Skip to content

Joomla! Object Injection Vulnerability

Critical severity GitHub Reviewed Published May 13, 2022 to the GitHub Advisory Database • Updated Sep 28, 2023

Package

composer joomla/joomla-cms (Composer)

Affected versions

>= 2.5.0, < 3.9.3

Patched versions

3.9.3

Description

An issue was discovered in Joomla! before 3.9.3. The phar:// stream wrapper can be used for object injection attacks because there is no protection mechanism (such as the TYPO3 PHAR stream wrapper) to prevent use of the phar:// handler for non .phar-files.

References

Published by the National Vulnerability Database Feb 12, 2019
Published to the GitHub Advisory Database May 13, 2022
Reviewed Jul 19, 2023
Last updated Sep 28, 2023

Severity

Critical

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS score

0.229%
(62nd percentile)

Weaknesses

CVE ID

CVE-2019-7743

GHSA ID

GHSA-5m3w-rvvh-8fx6

Source code

Loading Checking history
See something to contribute? Suggest improvements for this vulnerability.