CVE-2026-56705: Vrana Adminer

Critical severity, CVSS 9.8. EPSS: 0.9% chance of exploitation in the next 30 days.

Adminer before 5.4.3 fails to sanitize the server field before constructing a PDO DSN string, allowing unauthenticated attackers to inject ODBC parameters via semicolons. Attackers can inject TraceFile and TraceOn parameters to write PHP code to the web root, achieving remote code execution when the trace file is accessed.

Affected products

• Vrana Adminer: before 5.4.3 (fixed in 5.4.3)

Published 2026-08-25. Last modified 2026-09-08.