Privilege Escalation Vulnerability in LifterLMS WordPress Plugin
CVE-2025-11923
Key Information:
- Vendor
WordPress
- Vendor
- CVE Published:
- 13 November 2025
What is CVE-2025-11923?
The LifterLMS plugin for WordPress suffers from a privilege escalation vulnerability due to inadequate verification of user identity when modifying roles via the REST API. The flaw lies in the update_item_permissions_check() function, which permits unchecked updates to user roles, allowing authenticated attackers with student-level access or higher to assume admin privileges. Additionally, there is an exploitable endpoint for instructors, further broadening the attack surface. Users are advised to update their plugin versions to prevent exploitation.
Affected Version(s)
LifterLMS – WP LMS for eLearning, Online Courses, & Quizzes 3.5.3 <= 3.41.1
LifterLMS – WP LMS for eLearning, Online Courses, & Quizzes 4.0.0 <= 4.21.3
LifterLMS – WP LMS for eLearning, Online Courses, & Quizzes 5.0.0 <= 5.10.0