What the vulnerability does
01Description
The LearnPress plugin for WordPress is vulnerable to unauthorized data deletion due to a missing capability check on the `delete_question_answer()` function in all versions up to, and including, 4.3.2.8. The plugin exposes a `wp_rest` nonce in public frontend HTML (`lpData`) to unauthenticated visitors, and uses that nonce as the only security gate for the `lp-load-ajax` AJAX dispatcher. The `delete_question_answer` action has no capability or ownership check. This makes it possible for unauthenticated attackers to delete any quiz answer option by sending a crafted POST request with a publicly available nonce.
Explanation of Vulnerability in Simple Terms
02Summary
LearnPress versions up to 4.3.2.8 lack proper authorization checks, allowing unauthenticated attackers to modify or delete course data and other site content. The vulnerability requires no special access or user interaction. Site administrators should update immediately to a version newer than 4.3.2.8.
What an attacker can do
03Attacker Capabilities
Modify or delete courses, lessons, and other site content without logging in.
Potential impact on your site
04Site Impact
Attackers can corrupt or destroy course content and potentially other data without any credentials.
Conditions required to exploit
05Prerequisites
Network access only; no authentication or user interaction required.
Key dates
06Disclosure timeline
April 14, 2026
CVE published
April 14, 2026
Record updated
