Quick answers
- Is CVE-2026-81195 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-81195 being exploited in the wild.
- How severe is CVE-2026-81195?
- Medium severity, with a CVSS score of 5.3, published 2 September 2026.
- Which products and versions are affected?
- MasterStudy MasterStudy LMS before 3.7.46.
- Is there a fix for CVE-2026-81195?
- A patch was published on 2026-09-02: Fixed in version 3.7.46 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-81195 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-81195?
- Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
This is an authorization bypass (missing access control check) in the student-courses REST API endpoint. The vulnerable component fails to verify that the requester is authorized to view a specific user's enrollment data before returning it. An unauthenticated attacker can exploit this by obtaining a publicly-exposed REST nonce from the page source, then sending requests to /wp-json/masterstudy-lms/v2/student-courses with an arbitrary user_id parameter. The endpoint returns HTTP 200 and discloses enrolled courses, enrollment counts, and course-completion status. The vulnerability requires only network access and knowledge of valid user IDs (which can be enumerated). MasterStudy LMS versions before 3.7.46 are affected; a patch is available in 3.7.46 and later.
Affected products
- MasterStudy MasterStudy LMS before 3.7.46
Timeline
- 2026-08-31: disclosed
- 2026-09-02: patched: Fixed in version 3.7.46