{"id":"CVE-2021-3964","aliases":["GHSA-gwpx-q2h9-wxgx"],"url":"https://o3.security/vulnerability/CVE-2021-3964","summary":"elgg is vulnerable to Authorization Bypass Through User-Controlled Key","details":"elgg is vulnerable to Authorization Bypass Through User-Controlled Key","published":"2021-12-01T12:15:07.627Z","modified":"2026-08-07T17:02:43.754068Z","cvss":{"score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Packagist","name":"elgg/elgg","fixedVersion":"3.3.22"}],"fix":{"url":"https://github.com/elgg/elgg/commit/d9fcad76ee380ea17edd61d13d0f87828ea3f744","label":"elgg/elgg@d9fcad7"},"references":[{"type":"FIX","url":"https://github.com/elgg/elgg/commit/d9fcad76ee380ea17edd61d13d0f87828ea3f744"},{"type":"FIX","url":"https://huntr.dev/bounties/a4df45d6-b739-4299-967f-c960b569383a"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T17:02:43.754068Z"}}