CVE-2019-8138 : Security Advisory and Response

Magento 2 versions prior to 2.2.10 and 2.3.3 or 2.3.2-p1 have a stored cross-site scripting vulnerability that allows authenticated users to execute unauthorized JavaScript code.

Understanding CVE-2019-8138

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

What is CVE-2019-8138?

This vulnerability in Magento 2 allows authenticated users to run unauthorized JavaScript code by providing an unchecked API endpoint during the sale pickup event.

The Impact of CVE-2019-8138

The vulnerability enables attackers to execute malicious scripts within the context of the user's session, potentially leading to account takeover, data theft, or other harmful actions.

Technical Details of CVE-2019-8138

Magento 2 versions prior to 2.2.10 and 2.3.3 or 2.3.2-p1 are affected by this vulnerability.

Vulnerability Description

The flaw allows authenticated users to inject and execute arbitrary JavaScript code through an unchecked API endpoint.

Affected Systems and Versions

Product: Magento 2
Vendor: Adobe Systems Incorporated
Versions Affected: Magento 2.2 prior to 2.2.10, Magento 2.3 prior to 2.3.3 or 2.3.2-p1

Exploitation Mechanism

Attackers can exploit this vulnerability by providing a specially crafted API endpoint during the sale pickup event, bypassing validation checks.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent exploitation of this vulnerability.

Immediate Steps to Take

Apply the security updates provided by Magento for versions 2.2.10 and 2.3.3 or 2.3.2-p1.
Monitor for any unauthorized access or suspicious activities on the affected systems.

Long-Term Security Practices

Regularly update Magento installations to the latest secure versions.
Conduct security audits and penetration testing to identify and address vulnerabilities proactively.

Patching and Updates

Ensure timely installation of security patches released by Magento to mitigate the risk of exploitation.