{"id":"CVE-2023-37252","url":"https://www.cyber-defence.io/tools/cve/CVE-2023-37252","generatedAt":"2026-10-28T03:59:23.766Z","title":"An issue was discovered in the CheckUser extension for MediaWiki through 1.39.3.","description":"An issue was discovered in the CheckUser extension for MediaWiki through 1.39.3. Special:CheckUserLog shows usernames that have been hidden.","published":"2026-09-14T05:16:58.000Z","lastModified":"2026-09-16T19:31:54.000Z","status":"Awaiting Analysis","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":3.1,"severity":"LOW","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N"},"cwe":["CWE-669"],"affected":[],"epss":{"score":0.0024,"percentile":0.1507,"date":"2026-10-27","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 (0.24%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://phabricator.wikimedia.org/T330968","source":"cve@mitre.org"},{"url":"https://phabricator.wikimedia.org/T330968","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-37252","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."}