Vulnerability Monitor

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CVE-2024-23172

An issue was discovered in the CheckUser extension in MediaWiki before 1.35.14, 1.36.x through 1.39.x before 1.39.6, and 1.40.x before 1.40.2. XSS can occur via message definitions. e.g., in SpecialCheckUserLog.

Published

2024-01-12T05:15:10.187

Last Modified

2025-06-04T16:15:29.090

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.4 (MEDIUM)

Weaknesses

Type: Primary
CWE-79
Type: Secondary
CWE-79

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	mediawiki	mediawiki	< 1.35.14	Yes
Application	mediawiki	mediawiki	< 1.39.6	Yes
Application	mediawiki	mediawiki	< 1.40.2	Yes

References

https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/989179 Patch, Vendor Advisory ([email protected])
https://phabricator.wikimedia.org/T347708 Exploit, Vendor Advisory ([email protected])
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/989179 Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://phabricator.wikimedia.org/T347708 Exploit, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)