LifterLMS < 7.5.1 - Cross-Site Request Forgery

Description

The LifterLMS plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 7.5.0. This is due to missing or incorrect nonce validation on the llms-clone-post action. This makes it possible for unauthenticated attackers to clone posts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.