What’s Vulnerable › Vulnerabilities
CVE-2026-85571: Tutor LMS 4.0.5 - 4.1.0 - Instructor+ Arbitrary Post Reparenting via IDOR
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-10 · updated 2026-10-13
- Weakness: CWE-639
Description
The Tutor LMS WordPress plugin before 4.1.1 does not verify that the posts named in its course content ordering requests belong to a course the requester manages, allowing users with instructor level access to reassign the parent of any post on the site, taking other instructors' course content into their own courses and making arbitrary published content unreachable.
Affected products
- themeum Tutor LMS – eLearning and online course solution: from 4.0.5 before 4.1.1 — fixed in 4.1.1
How to fix
Upgrade to a fixed version: themeum Tutor LMS – eLearning and online course solution 4.1.1. Check the vendor advisory for mitigations.
References
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