CVE-2026-81199 MasterStudy LMS < 3.7.46 - Unauthenticated Student Statistics Disclosure via student/stats REST Route
Unauthenticated attackers can access any registered user's learning statistics, including course counts and quiz totals, via an unprotected REST route.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-81199?
CVE-2026-81199 is a medium-severity missing authorization vulnerability in Unknown MasterStudy LMS WordPress Plugin, published on 2 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-200
Which versions are affected by CVE-2026-81199?
How do I fix CVE-2026-81199?
No fix has been published for CVE-2026-81199 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-81199 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-81199 exists.
Public exploit code: 1 Nuclei template.
Sources
Also known as GHSA-gg9m-75r5-j67w.