PHP Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') Vulnerability (CVE-2008-2665)
Description
Directory traversal vulnerability in the posix_access function in PHP 5.2.6 and earlier allows remote attackers to bypass safe_mode restrictions via a .. (dot dot) in an http URL, which results in the URL being canonicalized to a local filename after the safe_mode check has successfully run.