Tutor LMS <= 3.9.5 - Insecure Direct Object Reference to Authenticated (Instructor+) Arbitrary Course Modification and Deletion

Authorization Bypass Through User-Controlled Key
CVE CVE-2026-1375
CVSS High (8.1)
Publicly Published February 2, 2026
Last Updated February 3, 2026
Researcher Athiwat Tiprasaharn (Jitlada), Tharadol Suksamran (d3kc4rt_1)
Description

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Insecure Direct Object References (IDOR) in all versions up to, and including, 3.9.5. This is due to missing object-level authorization checks in the `course_list_bulk_action()`, `bulk_delete_course()`, and `update_course_status()` functions. This makes it possible for authenticated attackers, with Tutor Instructor-level access and above, to modify or delete arbitrary courses they do not own by manipulating course IDs in bulk action requests.

References

1 affected software package

Software Type Plugin
Software Slug tutor (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 3.9.5
Patched Version
  • 3.9.6
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