CVE-2026-81196 MasterStudy LMS < 3.7.46 - Instructor+ Quiz Answer Disclosure via IDOR
Instructors can read other instructors' quiz questions and answers due to missing ownership verification in MasterStudy LMS.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-81196?
CVE-2026-81196 is a low-severity missing authorization vulnerability in Unknown MasterStudy LMS WordPress Plugin, published on 2 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.46 does not properly verify ownership of quiz question identifiers, allowing users with instructor access to read other instructors' quiz questions, including the correct answers and explanations.
Weakness: CWE-639
Which versions are affected by CVE-2026-81196?
How do I fix CVE-2026-81196?
No fix has been published for CVE-2026-81196 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-2026-81196 being exploited?
There is no known exploitation of CVE-2026-81196 in the wild and no public exploit code.
Sources
Also known as GHSA-7j6v-48vm-cmrx.