Masteriyo LMS – LMS Course Builder, Quizzes & Certificates: A security weakness

Masteriyo LMS – LMS Course Builder, Quizzes & Certificates is affected by a security weakness. Exploitation requires an authenticated WordPress account. The resulting impact depends on how the affected component exposes the vulnerable operation. The published affected range is <= 2.2.1.

CVE / CNA score 4.3 CVSS 3.1 · security@wordfence.com

NVD score Pending NVD has not published its own CVSS assessment.

Component: Masteriyo LMS – LMS Course Builder, Quizzes & Certificates
Plugin slug: learning-management-system
Affected: <= 2.2.1
Safe version: > 2.2.1
Published: Jun 27, 2026
Weakness: CWE-862 — Missing Authorization

This CVE was published Jun 27, 2026 and is one of 14 known issues for this plugin.

What to do

Patch or disable the affected component.

Update Masteriyo LMS – LMS Course Builder, Quizzes & Certificates to a release after 2.2.1, or disable and remove it until a fixed version is available.

Source record

Technical description

The Masteriyo LMS – LMS Course Builder, Quizzes & Certificates plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.2.1. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with student-level access and above, to modify the description (post content) of arbitrary course announcements authored by instructors or administrators.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

References

Patch or disable the affected component.

Technical description

Primary and upstream sources