Multiple directory traversal vulnerabilities in phpCommunity 2 2.1.8 allow remote attackers to read arbitrary files via a .. (dot dot) in the (1) file parameter to module/admin/files/show_file.php and the (2) path parameter to module/admin/files/show_source.php.
https://exchange.xforce.ibmcloud.com/vulnerabilities/49152
http://www.securityfocus.com/archive/1/501588/100/0/threaded