source: https://www.securityfocus.com/bid/18423/info

Woltlab Burning Board is prone to multiple SQL-injection vulnerabilities because the application fails to properly sanitize user-supplied input before using it in an SQL query. 

A successful exploit could allow an attacker to compromise the application, access or modify data, or exploit vulnerabilities in the underlying database implementation.

http://www.example.com/wbb2/profile.php?userid=[SQL]
http://www.example.com/studienplatztausch.php?sid=[SQL]
http://www.example.com/wbb2/thread.php?threadid=[SQL]