MasterStudy LMS < 3.7.43 - Unauthenticated Open Redirect
Priority LOW 21CWE-601Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Spoofing
- 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-601.
Summary
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.43 does not validate a redirect parameter supplied during user registration before using it, allowing unauthenticated attackers to redirect users to arbitrary external URLs.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0029 21st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed MasterStudy LMS WordPress Plugin (Unknown): 3.7.43
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- 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 | MasterStudy LMS WordPress Plugin | before 3.7.43 | 3.7.43 | Patch available | CNA |
- MasterStudy LMS WordPress Plugin VendorUnknown Affected before 3.7.43 Fixed in 3.7.43 Patch available CNA
Remediation
- Fix · CNA MasterStudy LMS WordPress Plugin (Unknown) Fixed in 3.7.43
Timeline
- 2026-10-02 Threatist record created from CVE-2026-81342
- 2026-10-03 Alias added: GHSA-368m-gh85-cq79
References
Sources
- CVE-2026-81342 · CVE Program
- CVE-2026-81342 · NVD
- FIRST EPSS
- GHSA-368m-gh85-cq79 · 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