{"id":"CVE-2025-53487","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-53487","generatedAt":"2026-10-28T03:25:41.074Z","title":"The ApprovedRevs extension for MediaWiki is vulnerable to stored XSS in multiple locations where system messages are inserted into raw HTML without proper escaping.","description":"The ApprovedRevs extension for MediaWiki is vulnerable to stored XSS in multiple locations where system messages are inserted into raw HTML without proper escaping. Attackers can exploit this by injecting JavaScript payloads via the uselang=x-xss language override, which causes crafted message keys to be rendered unescaped.\n\n\n\n\nThis issue affects Mediawiki - ApprovedRevs extension: from 1.39.X before 1.39.13, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.","published":"2025-07-07T16:15:26.000Z","lastModified":"2026-06-17T09:38:18.000Z","status":"Deferred","sourceIdentifier":"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc","cvss":{"version":"3.1","score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-79"],"affected":[],"epss":{"score":0.00198,"percentile":0.09522,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.20%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://gerrit.wikimedia.org/r/q/Ifcab085111e7898da485a5e2ae287fee4e6d167b","source":"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc"},{"url":"https://phabricator.wikimedia.org/T394383","source":"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-53487","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}