{"id":"CVE-2026-56702","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-56702","summary":"Adminer versions before 5.4.3 contain an unrestricted file upload vulnerability in the AdminerFileUpload plugin that allows authenticated users to upload PHP files by exploiting a permissive…","details":"Adminer versions before 5.4.3 contain an unrestricted file upload vulnerability in the AdminerFileUpload plugin that allows authenticated users to upload PHP files by exploiting a permissive default extension allowlist. Attackers can upload PHP webshells to columns ending in _path and execute arbitrary code as the web-server user when uploadPath is web-served.","published":"2026-08-25T02:16:41.900","modified":"2026-08-25T02:16:41.900","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://github.com/vrana/adminer/security/advisories/GHSA-vcvj-rwwm-x6g5"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/adminer-before-unrestricted-file-upload-via-adminerfileupload"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-25T02:16:41.900"}}