CVE-2026-12843: LearnDash LMS 4.25.0 - 5.1.6 - Unauthenticated Arbitrary Course Enrollment via REST Endpoint
The LearnDash LMS plugin for WordPress is vulnerable to authorization bypass in versions 4.25.0 - 5.1.6. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to enroll arbitrary users in paid courses without payment verification, bypassing the entire payment system and gaining unauthorized access to premium educational content.
Affected Software
Event History
Frequently Asked Questions
Which sites are exposed to this issue?
WordPress sites using LearnDash LMS versions 4.25.0 through 5.1.6 are affected. The vulnerable functionality can allow enrollment into paid courses without payment verification.
Does an attacker need an account or user interaction to exploit this?
No. The issue is described as exploitable by unauthenticated attackers, and it does not require user interaction.
What can an attacker do if exploitation succeeds?
An attacker can enroll arbitrary users in paid courses while bypassing the payment system. This can grant unauthorized access to premium educational content.