CVE-2006-7243: PHP

Medium severity, CVSS 5.0. EPSS: 5.4% chance of exploitation in the next 30 days.

PHP before 5.3.4 accepts the \0 character in a pathname, which might allow context-dependent attackers to bypass intended access restrictions by placing a safe file extension after this character, as demonstrated by .php\0.jpg at the end of the argument to the file_exists function.

Affected products

• PHP PHP: up to and including 5.3.3; version 1.0 only; version 2.0 only; version 2.0b10 only; version 3.0 only; version 3.0.1 only; …

Published 2011-01-18. Last modified 2026-06-16.