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CVE-2026-8279

Masteriyo LMS <= 2.2.0 - Missing Authorization to Unauthenticated Arbitrary Course Progress Deletion

MEDIUM
5.3
CVSS Score
Published: September 7, 2026 at 12:29 PM UTC
Updated: September 8, 2026 at 03:18 PM UTC
1 product affected across 1 vendorMasteriyo

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

The Masteriyo LMS plugin for WordPress is vulnerable to unauthorized data deletion due to a missing capability check on the 'delete_item_permissions_check' function in the CourseProgressItemsController in all versions up to, and including, 2.2.0. This makes it possible for unauthenticated attackers to delete arbitrary course progress records belonging to any student.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Masteriyo· Masteriyowordpress-plugin
60%
v ≤ 2.2.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

Source: cverecord
https://www.wordfence.com/threat-intel/vulnerabilities/id/d317d40b-2b99-408b-b445-1a789df3c958?source=cve
Source: cverecord
https://plugins.trac.wordpress.org/browser/learning-management-system/tags/2.1.9/includes/RestApi/Controllers/Version1/CourseProgressItemsController.php#L805
Source: cverecord
https://plugins.trac.wordpress.org/browser/learning-management-system/tags/2.1.9/includes/RestApi/Controllers/Version1/CourseProgressItemsController.php#L124
Source: cverecord
https://plugins.trac.wordpress.org/browser/learning-management-system/tags/2.1.9/includes/Repository/CourseProgressItemRepository.php#L269

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMWordfence
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-862

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