Aztek Forum 4.0 allows remote attackers to obtain sensitive information via a "*/*" in the msg parameter to index.php, which reveals usernames and passwords in a MySQL error message, possibly due to a forced SQL error or SQL injection.
https://www.exploit-db.com/exploits/1547
https://exchange.xforce.ibmcloud.com/vulnerabilities/25036
http://www.securityfocus.com/archive/1/426650/100/0/threaded