CVE-2026-56705

CriticalCVSS 9.8/10Last modified Oct 12, 2026

Description

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-73

Affected software

No affected versions have been published.

Timeline

Published: Aug 25, 2026
Last modified: Oct 12, 2026
NVD status: Deferred

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