CVE-2026-82846 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Vendors	Products
Masteriyo	Masteriyo
Wordpress	Wordpress

No data.

No data.

References

Link	Providers
https://wpscan.com/vulnerability/0ee2052c-90a8-4b98-947a-adc55feb1de7/

History

Mon, 07 Sep 2026 08:30:00 +0000

Type	Values Removed	Values Added
First Time appeared		Masteriyo Masteriyo masteriyo Wordpress Wordpress wordpress
Vendors & Products		Masteriyo Masteriyo masteriyo Wordpress Wordpress wordpress

Sun, 06 Sep 2026 11:30:00 +0000

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 6.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Sat, 05 Sep 2026 08:00:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-79

Sat, 05 Sep 2026 06:30:00 +0000

Type	Values Removed	Values Added
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.
Title		Masteriyo LMS 1.18.0 - 2.3.3 - Instructor+ Stored XSS via Course Custom Fields
References		https://wpscan.com/vulnerability/0ee2052c-90a8-4b98-947a-adc55feb1de7/

MITRE

Status: PUBLISHED

Assigner: WPScan

Published: 2026-09-05T06:00:06.979Z

Updated: 2026-09-06T10:39:07.360Z

Reserved: 2026-08-31T08:27:24.103Z

Link: CVE-2026-82846

Vulnrichment

Updated: 2026-09-06T10:30:03.635Z

NVD

Status : Deferred

Published: 2026-09-05T07:17:13.187

Modified: 2026-09-08T19:09:21.310

Link: CVE-2026-82846

Redhat

No data.

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