CVE-2026-16759: Themeum Tutor Lms – Elearning And Online Course Solution

Medium severity, CVSS 6.5. EPSS: 0.6% chance of exploitation in the next 30 days.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Remote Code Execution limited to zero-argument function invocation in all versions up to, and including, 4.0.5 via the tutor_course_filter_ajax AJAX action. This is due to missing authorization on the handler combined with unsanitized array keys being passed to extract() inside tutor_load_template(), allowing attacker-controlled POST data to overwrite the local $template variable and, in the resulting templates/single-content-loader.php template, the $method_map and $context variables invoked at $method_map[$context](). This makes it possible for unauthenticated attackers to call an arbitrary zero-argument PHP function server-side and, via WordPress core edit_user(), to create a persistent subscriber-level account from request parameters.

Affected products

• Themeum Tutor Lms – Elearning And Online Course Solution: up to and including 4.0.5

Published 2026-08-28. Last modified 2026-08-28.