Quiz And Survey Master <= 8.0.10 is vulnerable to Cross Site Request Forgery (CSRF) vulnerability

The Quiz And Survey Master plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 8.0.10. This is due to missing or incorrect nonce validation on the qsm_restore_function function. This makes it possible for unauthenticated attackers to restore deleted quizzes via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.