Medium severity · published Sep 2, 2026
CVE-2026-81199
MasterStudy LMS < 3.7.46 - Unauthenticated Student Statistics Disclosure via student/stats REST Route
5.3
CVSS
0.5%
EPSS
No
On KEV
Description
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.46 does not perform an authorization check before returning a student's learning statistics, allowing unauthenticated attackers to disclose the course counts, points, certificates, quiz and assignment totals of any registered user.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 41% 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-2026-81199
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-81199
wpscan.com
https://wpscan.com/vulnerability/8dd53f85-5d1b-4e0b-a0f5-8c65d89cefb5/
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