Variable overwrite vulnerability in common/config.php in Aztek Forum 4.00 allows remote attackers to overwrite arbitrary program variables and conduct other unauthorized activities, such as copying arbitrary files using index/common_actions.php, via vectors associated with extract operations on the (1) POST, (2) GET, (3) COOKIE, and (4) SERVER superglobal arrays.
common/safety.php in Aztek Forum 4.00 allows remote attackers to enter certain data containing %22 sequences (URL encoded double quotes) and other potentially dangerous manipulations by sending a cookie, which bypasses the blacklist matching against the GET and PUT superglobal arrays.
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.