Tutor LMS Unauthorized Data Modification Vulnerability (CVE-2025-11564) — Medium Severity Explained

Understanding the Tutor LMS Vulnerability

The Tutor LMS plugin, a popular solution for creating and managing online courses within WordPress, has been identified with a security vulnerability. This flaw could allow unauthorized individuals to bypass critical payment verification processes, potentially marking unpaid orders as successfully paid. This issue stems from a missing security check in the plugin’s code, specifically when it handles webhook requests.

CVE Details

Product: Tutor LMS – eLearning and online course solution plugin for WordPress
Published: October 25, 2025
Severity: Medium
Status: Analyzed

Affected Products

This vulnerability affects all versions of the Tutor LMS – eLearning and online course solution plugin for WordPress up to, and including, version 3.8.3. If you are using any of these versions, your website may be at risk.

Current Status

The vulnerability has been thoroughly analyzed and documented, indicating a clear understanding of its nature and potential impact.

Severity Level

With a CVSS score of 5.3, this vulnerability is rated as Medium Severity. A medium severity rating means that while the issue is significant and can lead to unauthorized actions like payment bypasses, it might require specific conditions or a certain level of attacker sophistication to exploit successfully. Nevertheless, it’s crucial to address such vulnerabilities promptly to maintain the integrity of your eLearning platform and protect your financial transactions.

Possible Solutions

The most effective solution for this type of vulnerability is to update your Tutor LMS plugin to the latest available version. Since the vulnerability affects versions up to and including 3.8.3, it is highly recommended to update to a version released after 3.8.3 as soon as it becomes available. Always ensure your WordPress core, themes, and all other plugins are also kept up-to-date to maintain a robust security posture.

References

https://plugins.trac.wordpress.org/browser/tutor/tags/3.8.3/ecommerce/PaymentGateways/Paypal/src/Payments/Paypal/Paypal.php#L323
https://www.wordfence.com/threat-intel/vulnerabilities/id/26289a93-063b-469a-9d09-c286d76fce0c?source=cve

Alex Joseph
Alex Joseph

Alex Joseph is a Senior Support Staff professional with deep experience in server management, web hosting technologies, and cybersecurity operations. He works daily with Linux servers, cloud platforms, performance tuning, and security hardening, giving him strong real-world technical knowledge. Along with his support role, he write about security best practices, hosting infrastructure, and software management.