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.
| Software | From | Fixed in |
|---|---|---|
| mediawiki / mediawiki | 1.40.0 | 1.40.2 |
| mediawiki / mediawiki | - | 1.39.6 |
| mediawiki / mediawiki | 1.41.0 | 1.41.1 |
| fedoraproject / fedora | 40 | 40.x |
- https://gerrit.wikimedia.org/r/c/mediawiki/extensions/WikibaseLexeme/+/1013359
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/
- https://phabricator.wikimedia.org/T357101
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