CVE-2026-56702highCWE-434

CVE-2026-56702: high-severity vulnerability in vrana adminer

Adminer before 5.4.3 Unrestricted File Upload via AdminerFileUpload

Published · Updated

Follow this CVE+ Monitor adminer+ Monitor adminer

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.1epss 0.6%
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.
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
Affected products
vrana · adminer
Related CVEs — vrana adminer

In the same product, most dangerous first.

CVE-2021-21311HIGHSSRF in adminerEPSS 98.5%KEVCVE-2021-29625HIGHXSS in doc_linkEPSS 9.6%CVE-2026-25892HIGHAdminer has an Unauthenticated Persistent DoS via Array Injection in ?script=version EndpointEPSS 1.7%CVE-2026-56703HIGHAdminer before 5.4.3 Remote Code Execution via SQLite VACUUM INTOEPSS 1.2%CVE-2026-56705CRITICALAdminer before 5.4.3 Remote Code Execution via MSSQL PDO DSN InjectionEPSS 0.9%CVE-2026-109347HIGHAdminer before 6.1.1 RCE via UTF-8 BOM SQLite ATTACH BypassEPSS 0.9%