Frontend Admin by DynamiApps <= 3.28.29 - Unauthenticated Privilege Escalation to Administrator via Role Form Field

The Frontend Admin by DynamiApps plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 3.28.29. This is due to insufficient validation of user-supplied role values in the 'validate_value', 'pre_update_value', and 'get_fields_display' functions. This makes it possible for unauthenticated attackers to register as administrators and gain complete control of the site, granted they can access a user registration form containing a Role field.