CVE-2021-36026 Explained : Impact and Mitigation

Magento Commerce Stored Cross-site Scripting Vulnerability allows attackers to inject malicious scripts into vulnerable fields, potentially executing JavaScript in victims' browsers.

Understanding CVE-2021-36026

This CVE pertains to a stored cross-site scripting vulnerability affecting Magento Commerce versions 2.4.2 and earlier, 2.4.2-p1 and earlier, and 2.3.7 and earlier.

What is CVE-2021-36026?

Magento Commerce versions 2.4.2, 2.4.2-p1, and 2.3.7 are prone to a stored XSS vulnerability in the customer address upload feature, enabling attackers to insert harmful scripts into vulnerable form fields.

The Impact of CVE-2021-36026

The vulnerability poses a medium severity risk with a CVSS base score of 6.5, allowing malicious scripts to be executed in a victim's browser when encountering the compromised field.

Technical Details of CVE-2021-36026

This section elucidates the specifics of the vulnerability.

Vulnerability Description

The vulnerability in Magento Commerce permits stored cross-site scripting, a type of web security vulnerability.

Affected Systems and Versions

Magento Commerce versions 2.4.2, 2.4.2-p1, and 2.3.7 are confirmed to be impacted by this vulnerability.

Exploitation Mechanism

Attackers exploit the customer address upload feature to inject malicious scripts, leveraging the stored XSS vulnerability.

Mitigation and Prevention

Here are measures to address and prevent exploits related to CVE-2021-36026.

Immediate Steps to Take

Users should apply security patches promptly and monitor for any suspicious activities on Magento Commerce platforms.

Long-Term Security Practices

Implementing strict input validation and security configurations can enhance protection against cross-site scripting attacks.

Patching and Updates

Regularly updating Magento Commerce to the latest versions with security patches is crucial for mitigating vulnerabilities.