CVE-2021-38344 : Exploit Details and Defense Strategies

A detailed overview of CVE-2021-38344, a vulnerability in Brizy Page Builder plugin for WordPress that allows authenticated stored cross-site scripting (XSS) attacks.

Understanding CVE-2021-38344

This section provides insights into the nature of the vulnerability and its potential impact.

What is CVE-2021-38344?

The Brizy Page Builder plugin <= 2.3.11 for WordPress was vulnerable to stored XSS by lower-privileged users, enabling the execution of malicious JavaScript.

The Impact of CVE-2021-38344

The vulnerability allowed attackers to inject malicious scripts into pages, putting the security and integrity of the WordPress websites at risk.

Technical Details of CVE-2021-38344

Explore the technical aspects and implications of the CVE-2021-38344 vulnerability.

Vulnerability Description

The flaw permitted unauthorized users to insert harmful JavaScript via the brizy_update_item AJAX action, affecting visitors viewing or previewing the page.

Affected Systems and Versions

Brizy Page Builder versions up to 2.3.11 running on WordPress were susceptible to this security issue.

Exploitation Mechanism

Attackers with subscriber-level access could exploit the vulnerability by manipulating page update requests to inject malicious scripts.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2021-38344 and prevent future security breaches.

Immediate Steps to Take

WordPress site administrators should update the Brizy Page Builder plugin to version 2.3.12 or newer to patch the vulnerability.

Long-Term Security Practices

Regularly monitor and update plugins, enforce least privilege access, and conduct security audits to prevent similar XSS attacks.

Patching and Updates

Stay informed about security updates and best practices for securing WordPress installations to safeguard against potential threats.