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Medium

Tutor LMS <= 3.9.7 - Authenticated (Subscriber+) Insecure Direct Object Reference to Arbitrary Course Content Modification

  • Disclosed: 10.04.2026
  • Updated: 11.10.2026 10:23

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 software

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PlatformPackageVulnerable versionsFixed in
WordPress plugin Tutor LMS – eLearning and online course solution <= 3.9.7 3.9.8

References

CVSS score 4.3/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weakness (CWE)
CWE-639
Platform
WordPress
Package
Tutor LMS – eLearning and online course solution
Disclosed
10.04.2026
Updated
11.10.2026 10:23

Sources and licenses

Wordfence Intelligence - f9cf0430-8577-449a-aefe-d7bf606fe2de - Wordfence Intelligence

Copyright 1999-2026 The MITRE Corporation

Copyright 2012-2026 Defiant Inc.

This record contains material that is subject to copyright

Copyright 1999-2026 The MITRE Corporation

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Copyright 2012-2026 Defiant Inc.

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

https://www.wordfence.com/wordfence-intelligence-terms-and-conditions/
Wordfence Intelligence
Wordfence Intelligence - Defiant, Inc.
Copyright Defiant, Inc. All rights reserved except as granted below.
License grant, section 3.1 of the Wordfence Intelligence Terms and Conditions (January 26, 2026):

Subject to this Agreement, Company hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute the Service. Any copy you make for such purposes is authorized provided that you reproduce Company’s copyright designation, this license, and the license of any disclosed Company licensor in any such copy.

Full applicable Agreement: https://www.wordfence.com/wordfence-intelligence-terms-and-conditions/

Vulnerability history: Tutor LMS – eLearning and online course solution

All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (92) in the archive
Total entries
92
First → latest
02.2020 10.2026
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Critical 3
  • High 19
  • Medium 69
  • Low 1

Disclosures per year

Severity:
  1. Tutor LMS – eLearning and online course solution <= 4.1.0 - Unauthenticated Stored Cross-Site Scripting
    High · 7.2 CVE-2026-42702 <= 4.1.0 4.1.1
  2. Tutor LMS <= 4.0.7 - Authenticated (Subscriber+) PHP Object Injection to Remote Code Execution
    High · 8.8 CVE-2026-78175 <= 4.0.7 4.0.8
  3. Tutor LMS <= 4.0.5 - Unauthenticated Arbitrary Zero-Argument Function Invocation
    Critical · 9.8 CVE-2026-19092 <= 4.0.5 4.0.6
  4. Tutor LMS – eLearning and online course solution < 4.0.6 - Unauthenticated SQL Injection
    High · 7.5 CVE-2026-19094 < 4.0.6 4.0.6
  5. Tutor LMS <= 3.9.7 - Authenticated (Subscriber+) Insecure Direct Object Reference to Arbitrary Course Content Modification this entry
    Medium · 4.3 CVE-2026-3371 <= 3.9.7 3.9.8
  6. Tutor LMS <= 3.9.7 - Missing Authorization to Unauthenticated Arbitrary Billing Profile Overwrite via 'order_id' Parameter
    High · 7.5 CVE-2026-3360 <= 3.9.7 3.9.8
  7. Tutor LMS <= 3.9.6 - Unauthenticated SQL Injection via coupon_code
    High · 7.5 CVE-2025-13673 <= 3.9.6 3.9.7
  8. Tutor LMS <= 3.9.5 - Insecure Direct Object Reference to Authenticated (Instructor+) Arbitrary Course Modification and Deletion
    High · 8.1 CVE-2026-1375 <= 3.9.5 3.9.6
  9. Tutor LMS <= 2.7.6 - Unauthenticated SQL Injection via rating_filter
    High · 7.5 CVE-2024-10400 <= 2.7.6 2.7.7
  10. Tutor LMS <= 2.7.2 - Authenticated (Administrator+) SQL Injection
    High · 7.2 CVE-2024-43282 <= 2.7.2 2.7.3
  11. Tutor LMS – eLearning and online course solution <= 2.7.1 -Authenticated (Administrator+) SQL Injection
    High · 7.2 CVE-2024-4902 <= 2.7.1 2.7.2
  12. Tutor LMS <= 2.7.0 - Missing Authorization
    Critical · 9.8 CVE-2024-4223 <= 2.7.0 2.7.1
  13. Tutor LMS <= 2.7.0 - Authenticated (Instructor+) SQL Injection
    High · 8.8 CVE-2024-4318 <= 2.7.0 2.7.1
  14. Tutor LMS – eLearning and online course solution <= 2.6.1 - Authenticated (Subscriber+) SQL Injection
    High · 8.8 CVE-2024-1751 <= 2.6.1 2.6.2
  15. Tutor LMS <= 2.2.0 - Missing Authorization via REST API
    High · 7.5 CVE-2023-3133 <= 2.2.0 2.2.1
  16. Tutor LMS <= 2.1.10 - Unauthenticated SQL Injection
    Critical · 9.8 CVE-2023-25700 <= 2.1.10 2.2.0
  17. Tutor LMS <= 2.1.10 - Authenticated (Tutor Instructor+) SQL Injection
    High · 8.8 CVE-2023-25990 <= 2.1.10 2.2.0
  18. Tutor LMS <= 2.2.0 - Authenticated (Student+) SQL Injection
    High · 8.8 CVE-2023-25800 <= 2.2.0 2.2.1
  19. Tutor LMS <= 1.9.11 - Stored Cross-Site Scripting
    High · 7.2 66130071-668e-4692-afd3-5fcc9039f10f <= 1.9.11 1.9.12
  20. Tutor LMS <=1.8.2 - SQL Injection via tutor_answering_quiz_question/get_answer_by_id
    High · 8.8 CVE-2021-24186 < 1.8.3 1.8.3
  21. Tutor LMS <=1.8.2 - SQL Injection via tutor_quiz_builder_get_answers_by_question
    High · 8.8 CVE-2021-24182 <= 1.8.2 1.8.3
  22. Tutor LMS – eLearning and online course solution <= 1.7.6 - Unprotected AJAX including Privilege Escalation
    High · 8.8 CVE-2021-24184 < 1.7.7 1.7.7
  23. Tutor LMS < 1.5.3 - Cross-Site Request Forgery
    High · 8.8 CVE-2020-8615 < 1.5.3 1.5.3

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