PHP Improper Limitation of a Pathname to a Restricted Directory (Path Traversal) Vulnerability - CVE-2015-6833
Directory traversal vulnerability in the PharData class in PHP before 5.4.44 5.5.x before 5.5.28 and 5.6.x before 5.6.12 allows remote attackers to write to arbitrary files via a .. (dot dot) in a ZIP archive entry that is mishandled during an extractTo call.