{"id":"CVE-2024-23172","details":"An issue was discovered in the CheckUser extension in MediaWiki before 1.35.14, 1.36.x through 1.39.x before 1.39.6, and 1.40.x before 1.40.2. XSS can occur via message definitions. e.g., in SpecialCheckUserLog.","aliases":["BIT-mediawiki-2024-23172"],"modified":"2026-04-09T09:58:58.591259Z","published":"2024-01-12T05:15:10.187Z","references":[{"type":"FIX","url":"https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/989179"},{"type":"EVIDENCE","url":"https://phabricator.wikimedia.org/T347708"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/wikimedia/mediawiki","events":[{"introduced":"0"},{"fixed":"7bb0aeb9dc77558628aece8e0827c8928f6e056c"},{"introduced":"bc542ec6d8573dfb906b468901799e0017875f1e"},{"fixed":"3406e1b7d014d22f2a68237ebf447a88b5ac74ed"},{"introduced":"468dd69d6ee8e84b9ab26d0ee3d52f215faaf0d4"},{"fixed":"b886c60c6af24561c805d1d7a2dd6cc0618a53c7"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"1.35.14"},{"introduced":"1.36.0"},{"fixed":"1.39.6"},{"introduced":"1.40.0"},{"fixed":"1.40.2"}]}}],"versions":["1.1.0","1.3.0beta1","1.35.0","1.35.0-rc.0","1.35.0-rc.1","1.35.0-rc.2","1.35.0-rc.3","1.35.1","1.35.10","1.35.11","1.35.12","1.35.13","1.35.2","1.35.3","1.35.4","1.35.5","1.35.6","1.35.7","1.35.8","1.35.9","1.39.0","1.39.0-rc.0","1.39.0-rc.1","1.39.1","1.39.2","1.39.3","1.39.4","1.39.5","1.40.0","1.40.1","1.5.0alpha1","1.5.0alpha2","1.5.0beta1","1.5.0beta2","1.5.0beta3","1.5.0beta4","1.6.0"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-23172.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"}]}