{"id":"CVE-2024-23172","aliases":["BIT-mediawiki-2024-23172","EUVD-2024-20691","GHSA-6h75-q28h-667c"],"status":"published","title":"An issue was discovered in the CheckUser extension in MediaWiki before 1.35.14, 1.36.x through 1...","description":"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.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00474,"percentile":0.41466,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2024-01-12T00:00:00Z","modified":"2026-10-28T02:30:52Z","fixes":[{"ecosystem":"Bitnami","package":"mediawiki","fixed_in":["1.41.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"mediawiki","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.41.1"}]}]}],"products":[{"vendor":"mediawiki","product":"mediawiki"}],"references":[{"url":"https://phabricator.wikimedia.org/T347708","tags":["x_transferred","Exploit","Vendor Advisory","web"]},{"url":"https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/989179","tags":["x_transferred","Patch","Vendor Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-23172","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-6h75-q28h-667c"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/23xxx/CVE-2024-23172.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2024-23172","description":"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.","status":"published","published":"2024-01-12T00:00:00Z","modified":"2025-06-04T15:18:54.208Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:34:05.444281Z"}],"euvd":[{"id":"EUVD-2024-20691","description":"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.","status":"published","published":"2024-01-12T00:00:00Z","modified":"2025-06-04T15:18:54Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T20:32:30.107804Z"}],"ghsa":[{"id":"GHSA-6h75-q28h-667c","title":"An issue was discovered in the CheckUser extension in MediaWiki before 1.35.14, 1.36.x through 1...","description":"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.","status":"published","published":"2024-01-12T06:30:16Z","modified":"2024-01-18T21:30:30Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:55:26.812198Z"}],"nvd":[{"id":"CVE-2024-23172","description":"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.","status":"published","published":"2024-01-12T05:15:10.187Z","modified":"2026-06-17T07:12:13.81Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:09:30.070039Z"}],"osv":[{"id":"CVE-2024-23172","description":"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.","status":"published","published":"2024-01-12T00:00:00Z","modified":"2026-10-28T02:30:52.408707507Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:38.577405Z"},{"id":"BIT-mediawiki-2024-23172","description":"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.","status":"published","published":"2024-03-06T10:56:50.795Z","modified":"2025-04-03T14:40:37.652Z","updated_at":"2026-11-02T15:28:33.072289Z"}]}}