The My Tickets – Accessible Event Ticketing plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 2.0.16. This is due to the mt_save_profile() function not appropriately restricting access to unauthorized users to update roles. This makes it possible for authenticated attackers, with Subscriber-level access and above, to update their role to that of an administrator.
The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.