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.
SQL injection vulnerability in forum/load.php in Aztek Forum 4.00 allows remote attackers to execute arbitrary SQL commands via the fid cookie to forum.php.
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.