Vulnerability · Published Sep 2, 2026 · Assigned by WPScan
CVE-2026-81198MasterStudy LMS < 3.7.46 - Instructor+ Cross-Course Curriculum Deletion and Tampering via IDOR
Low 3.8
In plain English
A low-severity authorization bypass via user-controlled key 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 25% of all known vulnerabilities).
Severity (CVSS 3.1)3.8Low
Exploit odds (30 days)0.3%top 75.1% 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 3.7.46 does not properly verify ownership of a curriculum object before acting on it, allowing authenticated users with the instructor role to delete or modify curriculum sections and materials belonging to courses owned by other instructors.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Unknown | MasterStudy LMS WordPress Plugin | 0 – before 3.7.46 |
Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L
References
- https://wpscan.com/vulnerability/424b3a47-78fe-4c95-a317-c1deaf2b7b0c/ exploit, vdb-entry, technical-description