Miniorange OTP Verification with Firebase 3.1.0 - 3.6.2 - Unauthenticated Privilege Escalation

The Miniorange OTP Verification with Firebase plugin for WordPress is vulnerable to privilege escalation due to a missing capability check on the 'handle_mofirebase_form_options' function in versions 3.1.0 to 3.6.2. This makes it possible for unauthenticated attackers to update the default role to Administrator. Premium features must be enabled in order to exploit the vulnerability.