What the vulnerability does
01Description
The LifterLMS plugin for WordPress is vulnerable to SQL Injection via the 'order' parameter in all versions up to, and including, 9.2.1. This is due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with Instructor-level access and above who have the edit_post capability on the quiz, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
Explanation of Vulnerability in Simple Terms
02Summary
LifterLMS versions up to 9.2.1 contain a SQL injection vulnerability in a database query that processes user input without proper sanitization. An authenticated user with low privileges can craft a malicious request to extract sensitive data from the site's database, including user credentials and course information. The vulnerability requires valid login credentials but no additional user interaction.
What an attacker can do
03Attacker Capabilities
Read sensitive data from the site database, including user credentials and course information.
Potential impact on your site
04Site Impact
User data, course content, and credentials may be exposed to authenticated attackers; immediate patching required.
Conditions required to exploit
05Prerequisites
Attacker must have a valid LifterLMS user account with low-level privileges (e.g., student or subscriber role).
Key dates
06Disclosure timeline
April 11, 2026
CVE published
April 13, 2026
Record updated
