Masteriyo LMS 1.3.1 - 2.3.3 - Unauthenticated Course Enrollment Disclosure
Priority LOW 30CWE-862Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-862.
Summary
The Masteriyo LMS WordPress plugin before 3.4.0 does not perform any authorization check before returning a course enrolment record over its REST API, allowing unauthenticated users to read any learner's enrolment status, timestamps and course-progress data by walking sequential record identifiers. A related gap lets any enrolled user retrieve other learners' enrolment records as well.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00323 25th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Masteriyo LMS (Unknown): 3.4.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | Masteriyo LMS | 1.3.1 to before 3.4.0 | 3.4.0 | Patch available | CNA |
- Masteriyo LMS VendorUnknown Affected 1.3.1 to before 3.4.0 Fixed in 3.4.0 Patch available CNA
Remediation
- Fix · CNA Masteriyo LMS (Unknown) Fixed in 3.4.0
Timeline
- 2026-10-02 Threatist record created from CVE-2026-82848
- 2026-10-03 Alias added: GHSA-3fc3-m3vj-c335
References
Sources
- CVE-2026-82848 · CVE Program
- CVE-2026-82848 · NVD
- FIRST EPSS
- GHSA-3fc3-m3vj-c335 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences