CVE-2026-56702

EUVD-2026-65200
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.8 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 47.91%
Debian logo
Debian Releases
Debian Product
Codename
adminer
bookworm
vulnerable
forky
6.1.0-1
fixed
sid
6.1.1-1
fixed
trixie
vulnerable
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
adminer
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
needs-triage
resolute
needs-triage
xenial
needs-triage
Common Weakness Enumeration
References
https://github.com/vrana/adminer/security/advisories/GHSA-vcvj-rwwm-x6g5
https://www.vulncheck.com/advisories/adminer-before-unrestricted-file-upload-via-adminerfileupload
https://github.com/vrana/adminer/security/advisories/GHSA-vcvj-rwwm-x6g5