CVE-2024-34502

CRITICAL9.8EPSS 0.16%

Published: 6/18/2025Modified: 11/6/2025

Description

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.

Affected packages (1)

Bitnami/mediawikifrom 0, < 1.41.1

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	CRITICAL9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References (5)

WEBhttps://gerrit.wikimedia.org/r/c/mediawiki/extensions/WikibaseLexeme/+/1013359
WEBhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/
WEBhttps://lists.fedoraproject.org/archives/list/[email protected]/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/
WEBhttps://nvd.nist.gov/vuln/detail/CVE-2024-34502
WEBhttps://phabricator.wikimedia.org/T357101