Vulnerability · Published Sep 7, 2026 · Assigned by Wordfence

CVE-2026-8279Masteriyo LMS <= 2.2.0 - Missing Authorization to Unauthenticated Arbitrary Course Progress Deletion

Medium 5.3

In plain English

A medium-severity missing authorization in Masteriyo LMS – LMS Course Builder, Quizzes & Certificates from masteriyo. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)0.4%top 65.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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 products (as reported)

Vendor	Product	Versions
masteriyo	Masteriyo LMS – LMS Course Builder, Quizzes & Certificates	0 – through 2.2.0

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

In plain English

Official description

Affected products (as reported)

References