Authorization bypass in themeum Tutor LMS – eLearning and online course solution
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-1375
- 2026-10-03 Alias added: GHSA-qxqc-g59m-cqx4
References
Other 5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/4e95b32b-c050-41eb-8fce-461257420eb6?source=cve
- 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
More themeum vulnerabilities
- TI-2024-09629 Tutor LMS <= 2.7.6 - Unauthenticated SQL Injection via rating_filter CVSS 3.1HIGH 7.5
- TI-2023-02936 Tutor LMS < 2.2.1 - Unauthenticated Access to Tutor LMS Lesson Resources via REST API CVSS 3.1HIGH 7.5
- TI-2021-07196 Qubely < 1.8.6 - Unauthenticated Arbitrary E-mail Sending CVSS 3.1HIGH 7.5
- TI-2023-05666 WP Crowdfunding < 2.1.9 - Reflected XSS CVSS 3.1MEDIUM 6.1
- TI-2023-00225 Tutor LMS < 2.0.10 - Reflected Cross-Site Scripting CVSS 3.1MEDIUM 6.1
- TI-2023-04422 Tutor LMS < 2.3.0 - Subscriber+ Stored Cross-Site Scripting CVSS 3.1MEDIUM 5.4
Sources
- CVE-2026-1375 · CVE Program
- CVE-2026-1375 · NVD
- FIRST EPSS
- GHSA-qxqc-g59m-cqx4 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences