Masteriyo LMS 1.18.0 - 2.3.3 - Instructor+ Stored XSS via Course Custom Fields

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-82846
StatePUBLISHED
AssignerWPScan
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-05 07:17:13 UTC
Updated2026-09-05 07:17:13 UTC
DescriptionThe 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.

Risk And Classification

Problem Types: CWE-79 Cross-Site Scripting (XSS)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Unknown Masteriyo LMS affected 1.18.0 3.4.0 semver Not specified

References

ReferenceSourceLinkTags
wpscan.com/vulnerability/0ee2052c-90a8-4b98-947a-adc55feb1de7 [email protected] wpscan.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Mutantgun (en)

CNA: WPScan (en)

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