The Masteriyo LMS WordPress plugin before 2.3.3 does not sanitise and escape a quiz field before outputting it back in a page, and grants its instructor role the ability to store unfiltered HTML, allowing such users to perform Stored Cross-Site Scripting attacks against any visitor of the affected page, including administrators.
This affects default single-site installations. Sites running multisite, or defining DISALLOW_UNFILTERED_HTML, are not affected as the capability is not granted there.
Metrics
Affected Vendors & Products
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References
History
Sun, 16 Aug 2026 07:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-79 |
Sun, 16 Aug 2026 06:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The Masteriyo LMS WordPress plugin before 2.3.3 does not sanitise and escape a quiz field before outputting it back in a page, and grants its instructor role the ability to store unfiltered HTML, allowing such users to perform Stored Cross-Site Scripting attacks against any visitor of the affected page, including administrators. This affects default single-site installations. Sites running multisite, or defining DISALLOW_UNFILTERED_HTML, are not affected as the capability is not granted there. | |
| Title | Masteriyo LMS < 2.3.3 - Instructor+ Stored XSS via Quiz Description | |
| References |
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MITRE
Status: PUBLISHED
Assigner: WPScan
Published:
Updated: 2026-08-16T06:00:16.021Z
Reserved: 2026-08-13T11:05:28.685Z
Link: CVE-2026-19712
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-08-16T06:16:52.207
Modified: 2026-08-16T06:16:52.207
Link: CVE-2026-19712
Redhat
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OpenCVE Enrichment
Updated: 2026-08-16T07:30:04Z