WP Courses LMS < 3.2.4 - Subscriber+ Arbitrary Options Update

Description

The plugin is vulnerable to unauthorized modification of data due to missing capability check on the wpc_save_fe_option() function hooked via AJAX in all versions up to, and including, 3.2.3. This makes it possible for authenticated attackers, with subscriber-level access and above, to update arbitrary options which can be used to achieve privilege escalation on most instances.