w-agora 4.2.1 allows remote attackers to obtain sensitive information by via the (1) bn[] array parameter to index.php, which expects a string, and (2) certain parameters to delete_forum.php, which displays the path name in the resulting error message.
https://exchange.xforce.ibmcloud.com/vulnerabilities/33076
http://www.securityfocus.com/archive/1/463213/100/0/threaded