CVE-2007-3778: Squirrelmail Gpg Plugin

High severity, CVSS 7.5. EPSS: 2.7% chance of exploitation in the next 30 days.

The G/PGP (GPG) Plugin 2.0, and 2.1dev before 20060912, for Squirrelmail allows remote attackers to execute arbitrary commands via shell metacharacters in the messageSignedText parameter to the gpg_check_sign_pgp_mime function in gpg_hook_functions.php. NOTE: a parameter value can be set in the contents of an e-mail message.

Affected products

• Squirrelmail Gpg Plugin: version 2.0 only; version 2.1_dev only

Published 2007-07-15. Last modified 2026-06-16.