CVE-2026-3371
Description
The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.9.7. This is due to missing authorization checks in the `save_course_content_order()` private method, which is called unconditionally by the `tutor_update_course_content_order` AJAX handler. While the handler's `content_parent` branch includes a `can_user_manage()` check, the `save_course_content_order()` call processes attacker-supplied `tutor_topics_lessons_sorting` JSON without any ownership or capability verification. This makes it possible for authenticated attackers with Subscriber-level access or above to detach lessons from topics, reorder course content, and reassign lessons between topics in any course, including admin-owned courses, by sending a crafted AJAX request with manipulated topic and lesson IDs.
Affected WordPress components
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Tutor LMS – eLearning and online course solution Plugin · tutorUp to and including 3.9.7View on WordPress.org
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Tutor Theme · tutorUp to and including 3.9.7View on WordPress.org
A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.
Affected products and versions
- themeum Tutor LMS – eLearning and online course solution — Up to and including 3.9.7
References
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Course.php#L1687
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Course.php#L1755
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Course.php#L252
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?old_path=%2Ftutor/tags/3.9.7&new_path=%2Ftutor/tags/3.9.8
- www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/f9cf0430-8577-449a-aefe-d7bf606fe2de?source=cve
- nvd.nist.gov Official NVD record