Bug 2279237 (CVE-2024-34502) - CVE-2024-34502 mediawiki: MergeLexemes makes edits on GET requests without edit tokens
Summary: CVE-2024-34502 mediawiki: MergeLexemes makes edits on GET requests without ed...
Keywords:
Status: NEW
Alias: CVE-2024-34502
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2279239
Blocks:
TreeView+ depends on / blocked
 
Reported: 2024-05-06 04:16 UTC by Avinash Hanwate
Modified: 2024-05-06 04:19 UTC (History)
0 users

Fixed In Version:
Clone Of:
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Description Avinash Hanwate 2024-05-06 04:16:13 UTC 
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.

https://gerrit.wikimedia.org/r/c/mediawiki/extensions/WikibaseLexeme/+/1013359
https://phabricator.wikimedia.org/T357101
Comment 1 Avinash Hanwate 2024-05-06 04:19:10 UTC 
Created mediawiki tracking bugs for this issue:

Affects: fedora-all [bug 2279239]
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