Mantis bug tracker by default has an option to allow signups with the user obtaining reporter access. We needed to disable the registration so that only Administrator’s of Mantis could add accounts. Initially I thought of commenting out the registration link by modifying the php but this would most likely appear again when we updated Mantis next.
Turns out it is really simple in mantis to disable registration, you simply need to add the following in the config_inc.php file.
#Disable user registration. Only Admins can create accounts. $g_allow_signup = OFF;