CVE-2026-56705

CVSS 9.8 (critical) · published 2026-08-25

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.

Weakness: CWE-73

Source: NVD CVE-2026-56705

References

• https://github.com/vrana/adminer/security/advisories/GHSA-r4x9-5m63-3vxw
• https://www.vulncheck.com/advisories/adminer-before-remote-code-execution-via-mssql-pdo-dsn-injection
• https://github.com/vrana/adminer/security/advisories/GHSA-r4x9-5m63-3vxw

Check your software

Connect an AI agent to the FixLane MCP server or ask the Telegram bot to check what you have installed against incidents with a verified fixed version.