Vulnerability Monitor

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CVE-2024-34507

An issue was discovered in includes/CommentFormatter/CommentParser.php in MediaWiki before 1.39.7, 1.40.x before 1.40.3, and 1.41.x before 1.41.1. XSS can occur because of mishandling of the 0x1b character, as demonstrated by Special:RecentChanges#%1b0000000.

Published

2024-05-05T19:15:07.307

Last Modified

2025-06-17T16:37:39.013

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 7.4 (HIGH)

Weaknesses

Type: Secondary
CWE-80

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	mediawiki	mediawiki	< 1.39.7	Yes
Application	mediawiki	mediawiki	< 1.40.3	Yes
Application	mediawiki	mediawiki	< 1.41.1	Yes
Operating System	fedoraproject	fedora	40	Yes

References

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/ Third Party Advisory ([email protected])
https://phabricator.wikimedia.org/T355538 Exploit, Issue Tracking, Vendor Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://phabricator.wikimedia.org/T355538 Exploit, Issue Tracking, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)