CVE-2001-1246: PHP

High severity, CVSS 7.5. EPSS: 9.7% chance of exploitation in the next 30 days.

PHP 4.0.5 through 4.1.0 in safe mode does not properly cleanse the 5th parameter to the mail() function, which allows local users and possibly remote attackers to execute arbitrary commands via shell metacharacters.

Affected products

• PHP PHP: from 4.0.5, up to and including 4.1.0

Published 2001-06-30. Last modified 2026-06-16.