CVE-2019-7866 Explained : Impact and Mitigation

Magento 2 versions 2.1 before 2.1.18, 2.2 before 2.2.9, and 2.3 before 2.3.2 are affected by a stored cross-site scripting (XSS) vulnerability in the admin panel.

Understanding CVE-2019-7866

This CVE identifies a stored cross-site scripting vulnerability in Magento 2 versions prior to specific updates.

What is CVE-2019-7866?

The vulnerability allows an authenticated user with editing privileges for Product information to exploit XSS via the TinyMCE editor in the admin panel.

The Impact of CVE-2019-7866

The vulnerability could be exploited by malicious users to execute arbitrary scripts in the context of the victim's session, potentially leading to unauthorized actions.

Technical Details of CVE-2019-7866

Magento 2 versions 2.1 before 2.1.18, 2.2 before 2.2.9, and 2.3 before 2.3.2 are susceptible to stored XSS attacks.

Vulnerability Description

A stored cross-site scripting vulnerability exists in the admin panel of affected Magento versions, allowing authenticated users to inject malicious scripts.

Affected Systems and Versions

Product: Magento 2
Versions: Magento 2.1 prior to 2.1.18, Magento 2.2 prior to 2.2.9, Magento 2.3 prior to 2.3.2

Exploitation Mechanism

An authenticated user with editing privileges for Product information uses the TinyMCE editor to inject malicious scripts.

Mitigation and Prevention

Immediate Steps to Take:

Apply the security updates provided by Magento to fix the vulnerability.
Restrict access to the admin panel to authorized personnel only. Long-Term Security Practices:
Regularly monitor and audit user activities within the admin panel.
Educate users on secure coding practices to prevent XSS vulnerabilities.
Implement web application firewalls and security plugins to enhance protection.
Stay informed about security best practices and updates from Magento.
Patching and Updates:
Install the security updates released by Magento for versions 2.1.18, 2.2.9, and 2.3.2 to address the XSS vulnerability.