CVE-2026-88844 MasterStudy LMS 3.6.2 - < 3.7.50 - Instructor+ Student PII Disclosure via IDOR
Instructors can view student names and emails from other instructors' courses due to missing ownership checks.
- 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-2026-88844?
CVE-2026-88844 is a low-severity missing authorization vulnerability in Unknown MasterStudy LMS WordPress Plugin, published on 18 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 3.7.50 does not verify that the requesting user owns the course before returning its enrolled-student data, allowing users with the MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50's Instructor role to disclose the names and email addresses of students enrolled in other instructors' courses.
Weakness: CWE-639
Which versions are affected by CVE-2026-88844?
How do I fix CVE-2026-88844?
No fix has been published for CVE-2026-88844 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-2026-88844 being exploited?
There is no known exploitation of CVE-2026-88844 in the wild and no public exploit code.
Sources
Also known as GHSA-g869-5rh7-8rvf.