{"cve_id":"CVE-2021-21311","published":"2021-02-11T21:15:13.820000+00:00","last_modified":"2026-06-17T03:35:16.213000+00:00","vuln_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_version":"3.1","cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","base_score":7.2,"base_severity":"HIGH","attack_vector":"NETWORK","privileges_req":"NONE","user_interaction":"NONE","scope":"CHANGED","impact_c":"LOW","impact_i":"LOW","impact_a":"NONE","cwe_ids":["CWE-918"],"in_kev":true,"kev_date_added":"2025-09-29","kev_ransomware":false,"epss_score":0.98464,"epss_percentile":0.9992,"cap_rule_version":"0.1.1","stage":"RECON","req_access":"NONE","req_vector":"NETWORK","req_user_interaction":false,"grant_access":"NONE","caps":["INFO_DISCLOSURE","LATERAL","TAMPER"],"terminal":false,"cap_confidence":"high","ingested_at":"2026-09-18T09:30:19.443689+00:00","first_seen":"2021-02-11T21:15:13.820000+00:00","kev_first_seen":"2025-09-29T00:00:00+00:00","novelty_score":0.0,"novelty_reasons":[],"novelty_at":null,"vendors":["adminer","debian"],"products":["adminer","debian_linux"],"affected":[{"vendor":"adminer","product":"adminer","ranges":["≥ 4.0.0 and < 4.7.9"]},{"vendor":"debian","product":"debian_linux","ranges":["9.0"]}]}