Medium severity · published Sep 2, 2026
CVE-2026-81194
MasterStudy LMS < 3.7.46 - Subscriber+ Cross-Instructor Order Data Disclosure via author_id Parameter
4.3
CVSS
0.3%
EPSS
No
On KEV
Description
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.46 does not properly verify authorization when retrieving order line-item data, allowing any authenticated user including Subscribers to read other instructors' course sales records by supplying another user's identifier.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 19% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ML
MasterStudy LMS WordPress Plugin ·
before 3.7.46 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-81194
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-81194
wpscan.com
https://wpscan.com/vulnerability/727903d4-ce0f-4ab4-bbd4-c973091e0b8f/
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