CVE-2006-6383: PHP

Medium severity, CVSS 4.6. EPSS: 1.1% chance of exploitation in the next 30 days.

PHP 5.2.0 and 4.4 allows local users to bypass safe_mode and open_basedir restrictions via a malicious path and a null byte before a ";" in a session_save_path argument, followed by an allowed path, which causes a parsing inconsistency in which PHP validates the allowed path but sets session.save_path to the malicious path.

Affected products

• PHP PHP: version 4.4.0 only; version 5.2.0 only

Published 2006-12-10. Last modified 2026-06-16.