{"cve":"CVE-2021-21311","nvd":{"published":"2021-02-11T21:15:13.820","modified":"2026-06-17T03:35:16.213","status":"Analyzed","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","score":7.2},"cwes":["CWE-918"],"references":["https://github.com/vrana/adminer/commit/ccd2374b0b12bd547417bf0dacdf153826c83351","https://github.com/vrana/adminer/files/5957311/Adminer.SSRF.pdf","https://github.com/vrana/adminer/security/advisories/GHSA-x5r2-hj5c-8jx6","https://lists.debian.org/debian-lts-announce/2021/03/msg00002.html","https://packagist.org/packages/vrana/adminer"],"products":["adminer:adminer","debian:debian_linux"],"source":"nvd","synced_at":"2026-10-19T21:14:10.479542811+00:00"},"epss":{"cve":"CVE-2021-21311","score":0.98464,"percentile":0.99919,"date":"2026-10-31"},"kev":{"cve":"CVE-2021-21311","date_added":"2025-09-29","due_date":"2025-10-20","vendor":"Adminer","product":"Adminer","known_ransomware":false},"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}