CVE-2026-82847
Medium
Description
The Masteriyo LMS WordPress plugin before 3.4.1 does not sanitise and escape one of its course fields before outputting it back in the course editor, allowing users with the instructor role to perform Stored Cross-Site Scripting attacks against higher privileged users such as administrators.
SeverityMedium
CVSS6.8
Exploit probability—
ProductMasteriyo LMS
PublishedSep 12, 2026
First seenSep 12, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- Masteriyo LMS3.4.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Masteriyo LMS | v < 3.4.1 | 3.4.1 |
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