Low severity · published Sep 12, 2026
CVE-2026-82851
Masteriyo LMS 1.14.0 - 3.4.0 - Instructor+ Arbitrary Post Disclosure via IDOR
2.7
CVSS
0.3%
EPSS
No
On KEV
Description
The Masteriyo LMS WordPress plugin before 3.4.1 does not verify ownership of, or restrict the type of, the records a user requests for download, allowing users with the instructor role to retrieve the full content and metadata of arbitrary posts, including other instructors' private and draft courses.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
Low
Integrity
None
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
ML
Masteriyo LMS ·
1.14.0 before 3.4.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-82851
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-82851
wpscan.com
https://wpscan.com/vulnerability/07664081-72c3-4f7e-9324-e0047b6e6d22/
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