CVE-2026-8279: CWE-862 Missing Authorization in masteriyo Masteriyo LMS – LMS Course Builder, Quizzes & Certificates
Description
Masteriyo LMS plugin for WordPress versions up to 2.2.0 contains a missing authorization vulnerability that allows unauthenticated attackers to delete arbitrary course progress records of any student. This is due to a missing capability check in the 'delete_item_permissions_check' function within the CourseProgressItemsController. The vulnerability has a medium severity with a CVSS score of 5.3.
CVSS v3.1
Score 5.3medium
Affected software
masteriyo
Masteriyo LMS – LMS Course Builder, Quizzes & Certificates
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-8279 describes a missing authorization vulnerability (CWE-862) in the Masteriyo LMS WordPress plugin, specifically in the 'delete_item_permissions_check' function of the CourseProgressItemsController. This flaw allows unauthenticated attackers to delete arbitrary course progress records belonging to any student. The issue affects all versions up to and including 2.2.0.
Potential Impact
An attacker without any privileges can delete course progress records of any student, impacting the integrity of course data. There is no confidentiality or availability impact reported. The integrity impact is limited to unauthorized deletion of course progress data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the plugin or disable it if possible to prevent exploitation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-05-11T04:57:04.257Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a9eb39eacd9273b49a323f0
Added to database: 09/07/2026, 12:52:46 UTC
Last enriched: 09/15/2026, 01:05:04 UTC
Last updated: 10/21/2026, 13:20:25 UTC
Views: 80
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