CVE-2026-82846
Medium
Description
The Masteriyo LMS WordPress plugin before 3.4.0 does not sanitise and escape some course settings before outputting them in a page available to all visitors, allowing users with a course-author role to perform Stored Cross-Site Scripting attacks that run in the session of anyone viewing the course, including a logged-in administrator.
SeverityMedium
CVSS6.8
Exploit probability—
ProductMasteriyo LMS
PublishedSep 5, 2026
First seenSep 5, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- Masteriyo LMS3.4.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Masteriyo LMS | 1.18.0 ≤ v < 3.4.0 | 3.4.0 |
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