CVE-2022-4669 : Exploit Details and Defense Strategies

Page Builder: Live Composer < 1.5.23 - Contributor+ Stored XSS via Shortcode.

Understanding CVE-2022-4669

The Page Builder: Live Composer WordPress plugin before version 1.5.23 is affected by a Stored Cross-Site Scripting vulnerability.

What is CVE-2022-4669?

The Page Builder: Live Composer plugin, when used with versions prior to 1.5.23, fails to validate and escape certain shortcode attributes. This issue could be exploited by users with the contributor role or higher to execute Stored XSS attacks.

The Impact of CVE-2022-4669

Exploitation of this vulnerability could lead to unauthorized execution of scripts in the context of a user’s browser, potentially compromising user data or performing actions on behalf of the user.

Technical Details of CVE-2022-4669

Vulnerability Description

The vulnerability in the Page Builder: Live Composer plugin allows contributors or higher-level users to inject malicious scripts using specially crafted shortcodes.

Affected Systems and Versions

The vulnerability affects Page Builder: Live Composer versions prior to 1.5.23.

Exploitation Mechanism

Attackers with at least a contributor role can create or edit posts/pages containing malicious shortcodes to trigger the Stored XSS vulnerability.

Mitigation and Prevention

Immediate Steps to Take

It is recommended to update the Page Builder: Live Composer plugin to version 1.5.23 or newer to prevent exploitation of this vulnerability.

Long-Term Security Practices

Regularly monitor for plugin updates and apply them promptly to address security vulnerabilities and protect against potential attacks.

Patching and Updates

Stay informed about security patches and updates released by the plugin developer to ensure the safety and integrity of your WordPress website.