Medium severity · published Jul 13, 2026
CVE-2026-12274
Tutor LMS < 3.9.13 - Instructor+ Arbitrary Post Overwrite via IDOR
6.5
CVSS
0.3%
EPSS
No
On KEV
Description
The Tutor LMS WordPress plugin before 3.9.13 does not verify that the requesting user is allowed to edit a target post before overwriting it in one of its content-builder save handlers, authorizing the request only against an unrelated identifier, allowing authenticated users with instructor-level access to overwrite and take over any post or page on the site, including those owned by administrators.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TL
Tutor LMS ·
before 3.9.13 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-12274
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-12274
wpscan.com
https://wpscan.com/vulnerability/c3d98ead-a4f4-48fd-bf9c-4fa91c5681d7/
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