Directory traversal vulnerability in index.php in phpWebFTP 3.2 and earlier allows remote attackers to read arbitrary files via a .. (dot dot) in the language parameter.
https://exchange.xforce.ibmcloud.com/vulnerabilities/25920
http://www.vupen.com/english/advisories/2006/1388
http://www.securityfocus.com/bid/17557
http://www.securityfocus.com/archive/1/431115/100/0/threaded