CVE-2019-7853 : Security Advisory and Response

Magento 2 versions prior to 2.1.18, 2.2.9, and 2.3.2 are vulnerable to stored cross-site scripting (XSS) attacks, allowing authenticated users to exploit the tax notifications configuration in the admin panel.

Understanding CVE-2019-7853

This CVE identifies a stored cross-site scripting vulnerability in Magento 2 versions before 2.1.18, 2.2.9, and 2.3.2.

What is CVE-2019-7853?

The vulnerability allows authenticated users with appropriate privileges to execute XSS attacks through the tax notifications configuration in the Magento admin panel.

The Impact of CVE-2019-7853

The vulnerability poses a risk of unauthorized access, data theft, and potential compromise of the affected Magento installations.

Technical Details of CVE-2019-7853

Magento 2 versions prior to 2.1.18, 2.2.9, and 2.3.2 are susceptible to stored XSS attacks.

Vulnerability Description

A stored cross-site scripting vulnerability in Magento 2 allows authenticated users to execute malicious scripts via the tax notifications configuration.

Affected Systems and Versions

Product: Magento 2
Versions Affected: 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

The vulnerability can be exploited by authenticated users with appropriate privileges manipulating the tax notifications configuration.

Mitigation and Prevention

To address CVE-2019-7853, follow these steps:

Immediate Steps to Take

Update Magento to versions 2.1.18, 2.2.9, or 2.3.2, which contain security patches.
Regularly monitor and review admin panel configurations for any unauthorized changes.

Long-Term Security Practices

Educate users on safe admin panel practices and the risks of XSS attacks.
Implement a web application firewall (WAF) to detect and block XSS attempts.

Patching and Updates

Apply security updates and patches provided by Magento to mitigate the vulnerability.