Vulnerability · Published Aug 29, 2026 · Assigned by WPScan
CVE-2026-81342MasterStudy LMS < 3.7.43 - Unauthenticated Open Redirect
Medium 4.7
In plain English
A medium-severity open redirect in MasterStudy LMS WordPress Plugin from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities).
Severity (CVSS 3.1)4.7Medium
Exploit odds (30 days)0.3%top 78.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Unknown | MasterStudy LMS WordPress Plugin | 0 – before 3.7.43 |
Weakness: CWE-601 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
References
- https://wpscan.com/vulnerability/f6f89b50-3087-4fb6-ba12-93fdc1bcc9ed/ exploit, vdb-entry, technical-description