# CVE-2026-88944: Tutor LMS authorization bypass in post deletion

Source: https://junglewise.ai/threats/cve-2026-88944-the-tutor-lms-elearning-and-online-course-solution-plugin-for  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-19. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-88944 · Severity: medium · CVSS 4.3 · Published 2026-09-19

Tutor LMS is a WordPress plugin for managing online courses. An authenticated attacker with basic subscriber access can delete any WordPress post—including courses, lessons, quizzes, and products—through a complex exploit chain involving profile uploads and topic manipulation. While the attack requires account access and multiple steps, it poses a significant risk to course and content integrity.

Technologies: [Themeum Tutor LMS](https://junglewise.ai/threats/technologies/tutor-lms). Vendors: [Themeum](https://junglewise.ai/threats/vendors/themeum).

## Quick answers

**Is CVE-2026-88944 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-88944 being exploited in the wild.

**How severe is CVE-2026-88944?** Medium severity, with a CVSS score of 4.3, published 19 September 2026.

**Which products and versions are affected?** Themeum Tutor LMS up to 4.0.8.

**Is there a fix for CVE-2026-88944?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-88944 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-88944?** Check whether you run Themeum Tutor LMS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is an authorization bypass in the lesson deletion handler that fails to verify whether the authenticated user owns or has permission to delete the target post. An attacker with subscriber-level access first creates an authored attachment through the profile-photo upload flow, reparents a Tutor topic to that attachment, then invokes the lesson deletion handler with an arbitrary post ID. The successful delete occurs because the plugin calls wp_delete_post() without proper capability checks.

## Affected products

- Themeum Tutor LMS up to 4.0.8

## Timeline

- 2026-09-19: disclosed

## References

- [https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.7/classes/Course.php](https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.7/classes/Course.php)
- [https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.7/classes/Course.php](https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.7/classes/Course.php)

## Related threats

- [Tutor LMS insecure direct object reference in API routing](https://junglewise.ai/threats/cve-2026-93779-the-tutor-lms-elearning-and-online-course-solution-plugin-for)
- [Themeum Tutor LMS stored cross-site scripting](https://junglewise.ai/threats/cve-2026-111407-improper-neutralization-of-input-during-web-page-generation)
- [Tutor LMS insecure direct object reference in course update](https://junglewise.ai/threats/cve-2026-92715-the-tutor-lms-elearning-and-online-course-solution-plugin-for)
- [Tutor LMS stored cross-site scripting via display_name](https://junglewise.ai/threats/cve-2026-93681-the-tutor-lms-elearning-and-online-course-solution-plugin-for)
- [Themeum Tutor LMS reflected cross-site scripting vulnerability](https://junglewise.ai/threats/cve-2026-42702-improper-neutralization-of-input-during-web-page-generation-cross)