Cross-site scripting (XSS) vulnerability in DCForum 6.25 and earlier, and possibly DCForum+ 1.x, allows remote attackers to inject arbitrary web script or HTML via (1) the page parameter in dcboard.php and (2) unspecified search parameters.

retrieve_password.pl in DCForum 6.x and 2000 generates predictable new passwords based on a sessionID, which allows remote attackers to request a new password on behalf of another user and use the sessionID to calculate the new password for that user.

DCScripts DCForum versions 2000 and earlier allow a remote attacker to gain additional privileges by inserting pipe symbols (|) and newlines into the last name in the registration form, which will create an extra entry in the registration database.

upload_file.pl in DCForum 2000 1.0 allows remote attackers to upload arbitrary files without authentication by setting the az parameter to upload_file.

dcboard.cgi in DCForum 2000 1.0 allows remote attackers to execute arbitrary commands by uploading a Perl program to the server and using a .. (dot dot) in the AZ parameter to reference the program.

DCForum cgforum.cgi CGI script allows remote attackers to read arbitrary files, and delete the program itself, via a malformed "forum" variable.