The LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 4.0.0. This is due to missing or incorrect nonce validation on the filter_users functions. This makes it possible for unauthenticated attackers to elevate their privileges to that of a teacher via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.