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Medium severity · published Oct 10, 2026
CVE-2026-85571
Tutor LMS 4.0.5 - 4.1.0 - Instructor+ Arbitrary Post Reparenting via IDOR
6.5
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TL
Tutor LMS ·
4.0.5 before 4.1.1 · source: vendor
Affected product
TL
Tutor LMS
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-85571
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-85571
exploit
https://wpscan.com/vulnerability/3c4ce27a-527a-416f-b1c8-d40ca5f65974/
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