{"id":"CVE-2026-56702","summary":"Adminer before 5.4.3 Unrestricted File Upload via AdminerFileUpload","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.","aliases":["GHSA-vcvj-rwwm-x6g5"],"modified":"2026-08-28T03:30:28.434675583Z","published":"2026-08-25T01:30:00.475Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56702.json","cna_assigner":"VulnCheck","cwe_ids":["CWE-434"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56702.json"},{"type":"ADVISORY","url":"https://github.com/vrana/adminer/security/advisories/GHSA-vcvj-rwwm-x6g5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56702"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/adminer-before-unrestricted-file-upload-via-adminerfileupload"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/vrana/adminer","events":[{"introduced":"0"},{"fixed":"189869c4a8f0f897848cdb58493b572178084d6c"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"5.4.3"}],"source":["AFFECTED_FIELD","DESCRIPTION"]}}],"versions":["v5.4.2","v5.4.1","v5.4.0","v5.3.0","v5.2.1","v5.2.0","v5.1.1","v5.1.0","v5.0.6","v5.0.5","v5.0.4","v5.0.3","v5.0.2","v5.0.1","v5.0.0","v4.17.1","v4.17.0","v4.16.0","v4.8.1","v4.8.0","v4.7.9","v4.7.8","v4.7.7","v4.7.5","v4.7.4","v4.7.3","v4.7.2","v4.7.1","v4.7.0","v4.6.3","v4.6.2","v4.6.1","v4.6.0","v4.5.0","v4.4.0","v4.3.1","v4.3.0","v4.2.5","v4.2.4","v4.2.3","v4.2.2","v4.2.1","v4.2.0","v4.1.0","v4.0.3","v4.0.2","v4.0.1","v4.0.0","v3.7.1","v3.7.0","v3.6.4","v3.6.3","v3.6.2","v3.6.1","v3.6.0","v3.5.1","v3.5.0","v3.4.0","v3.3.4","v3.3.3","v3.3.2","v3.3.1","v3.3.0","v3.2.2","v3.2.1","v3.2.0","v3.1.0","v3.0.1","v3.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56702.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"}]}