What’s Vulnerable › Vulnerabilities

CVE-2026-1375: Tutor LMS <= 3.9.5 - Insecure Direct Object Reference to Authenticated (Instructor+) Arbitrary Course Modification and Deletion

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-03 · updated 2026-06-17
• Weakness: CWE-639

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.

Affected products

• themeum Tutor LMS – eLearning and online course solution: through 3.9.5

References

• https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.5/classes/Course_List.php#L289
• https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.5/classes/Course_List.php#L437
• https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.5/classes/Course_List.php#L463
• https://plugins.trac.wordpress.org/changeset/3448615/tutor/trunk/classes/Course_List.php?contextall=1&old=3339576&old_path=%2Ftutor%2Ftrunk%2Fclasses%2FCourse_List.php
• https://www.wordfence.com/threat-intel/vulnerabilities/id/4e95b32b-c050-41eb-8fce-461257420eb6?source=cve

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