What’s Vulnerable › Vulnerabilities
CVE-2026-88847: MasterStudy LMS < 3.7.50 - Subscriber+ Lesson Completion Record Creation
- Severity: medium (CVSS 4.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-24 · updated 2026-09-24
- Weakness: CWE-862
Description
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not verify that a user is enrolled in a course before recording lesson completions against it, allowing any authenticated user, such as a subscriber, to create course progress records for courses they have no access to.
Affected products
- MasterStudy LMS WordPress Plugin: before 3.7.50 — fixed in 3.7.50
How to fix
Upgrade to a fixed version: MasterStudy LMS WordPress Plugin 3.7.50. Check the vendor advisory for mitigations.
References
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