CVE-2026-81199
MediumThe 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…
Published Sep 2, 2026 · Updated Sep 9, 2026 · Also known as 63af850e-a989-4ba0-847b-deae35864b18, EUVD-2026-69852, GHSA-gg9m-75r5-j67w
Key Facts
Routine patching- CVE-2026-81199 is a medium-severity vulnerability (CVSS 5.3 v3.1) affecting masterstudy-lms-learning-management-system (wordpress-plugin), MasterStudy LMS WordPress Plugin.
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 0.5% probability of exploitation in the next 30 days.
- Fixed versions are available, including MasterStudy LMS WordPress Plugin 3.7.46, masterstudy-lms-learning-management-system 3.7.46.
- Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
CVSS v3.1
5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS (30-day exploit likelihood)
0.5%
Higher than 39.5% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
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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.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| masterstudy-lms-learning-management-systemwordpress-plugin | See advisory | 3.7.46 |
| MasterStudy LMS WordPress Plugin | See advisory | 3.7.46 |
Patched Releases
MasterStudy LMS WordPress Plugin
3.7.46
masterstudy-lms-learning-management-system
3.7.46
Timeline
Publicly disclosed
Sep 2, 2026
Last updated
Sep 9, 2026
Weakness Type
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
References
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/63af850e-a989-4ba0-847b-deae35864b18?source=api-prod
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/63af850e-a989-4ba0-847b-deae35864b18?source=api-scan
- otherhttps://wpscan.com/vulnerability/8dd53f85-5d1b-4e0b-a0f5-8c65d89cefb5/
FAQ
Common Questions.
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.
Affected: masterstudy-lms-learning-management-system (wordpress-plugin); MasterStudy LMS WordPress Plugin. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including MasterStudy LMS WordPress Plugin 3.7.46, masterstudy-lms-learning-management-system 3.7.46.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
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