CVE-2026-82846 – The Masteriyo LMS WordPress plugin before 3.4.0 does not sanitise and escape some course

The Masteriyo LMS WordPress plugin before 3.4.0 does not sanitise and escape some course settings before outputting them in a page available to all visitors, allowing users with a course-author role to perform Stored Cross-Site Scripting attacks that run in the session of anyone viewing the course, including a logged-in administrator.