CVE-2005-0239: Squirrelmail S Mime Plugin

High severity, CVSS 7.5. EPSS: 4.2% chance of exploitation in the next 30 days.

viewcert.php in the S/MIME plugin 0.4 and 0.5 for Squirrelmail allows remote attackers to execute arbitrary commands via shell metacharacters in the cert parameter.

Affected products

• Squirrelmail S Mime Plugin: version 0.4 only; version 0.5 only

Published 2005-05-02. Last modified 2026-06-16.