Adminer · Adminer · CVE-2026-56705
**Name of the Vulnerable Software and Affected Versions**
Adminer versions prior to 5.4.3
**Description**
Insufficient sanitization of the server field during the construction of a PDO DSN (Data Source Name) string allows unauthenticated attackers to inject ODBC parameters using semicolons. By injecting the `TraceFile` and `TraceOn` parameters, an attacker can write PHP code directly into the web root, leading to remote code execution when the resulting trace file is accessed.
**Recommendations**
Update to version 5.4.3 or later.