Tutor LMS – eLearning and online course solution: Broken access control
Tutor LMS – eLearning and online course solution is affected by broken access control. Exploitation requires an authenticated subscriber account. A successful request can reach data or an operation that should be restricted to another user or a more privileged role. The published affected range is <= 3.9.7.
- Component
- Tutor LMS – eLearning and online course solution
- Plugin slug
tutor- Affected
- <= 3.9.7
- Safe version
- See mitigation notes
- Published
- Apr 11, 2026
This CVE was published Apr 11, 2026 and is one of 46 known issues for this plugin.
Update, patch or deactivate.
No fixed release is identified. Update Tutor LMS – eLearning and online course solution when a release after 3.9.7 becomes available; until then, disable and remove it when the site's risk warrants. The official upstream changelog lists version 4.0.5, which is newer than the published affected range. Its changelog does not clearly confirm this specific fix, so it is not counted as a known-safe release.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical 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.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N