What the vulnerability does
01Description
The Tutor LMS WordPress plugin before 4.0.6 does not prevent request data from overwriting internal variables while rendering templates, allowing unauthenticated users to invoke arbitrary zero-argument PHP functions and receive their output.
Explanation of Vulnerability in Simple Terms
02Summary
Tutor LMS versions 2.1.3 through 4.0.6 contain a critical vulnerability allowing unauthenticated attackers to read sensitive data, modify site content, and disrupt service. The flaw requires no user interaction and can be exploited remotely over the network. Update to version 4.0.6 or later immediately.
What an attacker can do
03Attacker Capabilities
Read sensitive data, modify content, and disrupt the site without logging in.
Potential impact on your site
04Site Impact
Your site's data, content, and availability are at immediate risk from remote attackers.
Conditions required to exploit
05Prerequisites
Network access only; no authentication or user interaction required.
Key dates
06Disclosure timeline
August 27, 2026
CVE published
August 28, 2026
Record updated