{"id":"CVE-2021-21311","aliases":["GHSA-x5r2-hj5c-8jx6"],"url":"https://o3.security/vulnerability/CVE-2021-21311","summary":"SSRF in adminer","details":"Adminer is an open-source database management in a single PHP file. In adminer from version 4.0.0 and before 4.7.9 there is a server-side request forgery vulnerability. Users of Adminer versions bundling all drivers (e.g. `adminer.php`) are affected. This is fixed in version 4.7.9.","published":"2021-02-11T21:15:13.820Z","modified":"2026-08-07T11:48:34.300930926Z","cvss":{"score":7.2,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N"},"epss":{"score":0.90461,"percentile":0.99792,"asOf":"2026-09-08"},"cisaKev":null,"exploitsKnown":4,"affectedPackages":[{"ecosystem":"Packagist","name":"vrana/adminer","fixedVersion":"4.7.9"}],"fix":{"url":"https://github.com/vrana/adminer/commit/ccd2374b0b12bd547417bf0dacdf153826c83351","label":"vrana/adminer@ccd2374"},"references":[{"type":"WEB","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21311"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2021/03/msg00002.html"},{"type":"ADVISORY","url":"https://packagist.org/packages/vrana/adminer"},{"type":"FIX","url":"https://github.com/vrana/adminer/commit/ccd2374b0b12bd547417bf0dacdf153826c83351"},{"type":"FIX","url":"https://github.com/vrana/adminer/security/advisories/GHSA-x5r2-hj5c-8jx6"},{"type":"EVIDENCE","url":"https://github.com/vrana/adminer/files/5957311/Adminer.SSRF.pdf"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:48:34.300930926Z"}}