Missing authorization in Tutor LMS lets instructors move other posts
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-639.
Summary
The Tutor LMS WordPress plugin from 4.0.5 before 4.1.1 does not verify that the posts named in course content ordering requests belong to a course the requester manages. An authenticated user with instructor level access can reassign the parent of any post on the site (CWE-639). This lets them take other instructors' course content into their own courses and can make published content unreachable. An exploit link is listed in the references.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
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.
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | Tutor LMS | 4.0.5 to before 4.1.1 | 4.1.1 | Patch available | CNA |
- Tutor LMS VendorUnknown Affected 4.0.5 to before 4.1.1 Fixed in 4.1.1 Patch available CNA
Remediation
Upgrade Tutor LMS to version 4.1.1, the fixed version.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
- Fix · CNA Tutor LMS (Unknown) Fixed in 4.1.1
Timeline
- 2026-10-10 Threatist record created from CVE-2026-85571
- 2026-10-10 Alias added: GHSA-p4r6-qc79-jj5f
- 2026-10-11 CVSS score added · CISA ADP
- 2026-10-11 Weakness changed · CISA ADP
- 2026-10-11 CISA SSVC decision points changed
References
Sources
- CVE-2026-85571 · CVE Program
- CVE-2026-85571 · NVD
- FIRST EPSS
- GHSA-p4r6-qc79-jj5f · GitHub Advisory Database · CC BY 4.0
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