Is CVE-2026-3371 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2026-3371, but active exploitation has not been confirmed.

Can CVE-2026-3371 be exploited remotely?

Yes. CVE-2026-3371 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-3371?

CVE-2026-3371 has a CVSS score of 4.3 (MEDIUM).

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MEDIUMPOC

CVE-2026-3371

CWE-639Published: April 11, 2026· Updated: Apr 13, 2026

4.3

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2026-3371 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A proof-of-concept (PoC) exploit exists for CVE-2026-3371. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.