Vulnerability Monitor

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CVE-2024-34502

An issue was discovered in WikibaseLexeme in MediaWiki before 1.39.6, 1.40.x before 1.40.2, and 1.41.x before 1.41.1. Loading Special:MergeLexemes will (attempt to) make an edit that merges the from-id to the to-id, even if the request was not a POST request, and even if it does not contain an edit token.

Published

2024-05-05T19:15:07.197

Last Modified

2025-11-04T18:16:22.413

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

Weaknesses

Type: Secondary
CWE-352

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	mediawiki	mediawiki	< 1.39.6	Yes
Application	mediawiki	mediawiki	< 1.40.2	Yes
Application	mediawiki	mediawiki	< 1.41.1	Yes
Operating System	fedoraproject	fedora	40	Yes

References

https://gerrit.wikimedia.org/r/c/mediawiki/extensions/WikibaseLexeme/+/1013359 Patch, Vendor Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/ Mailing List, Third Party Advisory ([email protected])
https://phabricator.wikimedia.org/T357101 Issue Tracking, Vendor Advisory ([email protected])
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/WikibaseLexeme/+/1013359 Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/ Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/[email protected]/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/ (af854a3a-2127-422b-91ae-364da2661108)
https://phabricator.wikimedia.org/T357101 Issue Tracking, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)