Forminator Forms < 1.57.2.1 - Authenticated Privilege Escalation via Quiz Lead-Form Import

The Forminator Forms WordPress plugin before 1.57.2.1 does not apply the role validation it enforces elsewhere when a registration form is nested inside an imported quiz, allowing a user who may import quizzes to publish a live, publicly reachable form that grants any role, including administrator, to anyone who submits it. The same user is refused an identical form through both the ordinary form editor and the ordinary form import.