The Academy LMS WordPress plugin before 3.8.1 does not verify ownership of a user-supplied user identifier in several of its lesson AJAX handlers, allowing authenticated users with subscriber-level access to read and modify other users' lesson notes and mark other users' lesson content as completed.

The Academy LMS WordPress plugin before 3.8.1 does not verify ownership of a user-supplied user identifier in several of its lesson AJAX handlers, allowing authenticated users with subscriber-level access to read and modify other users' lesson notes and mark other users' lesson content as completed.