What the vulnerability does
01Description
The WPBakery Page Builder for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's Grid Builder feature in all versions up to, and including, 8.4.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Explanation of Vulnerability in Simple Terms
02Summary
WPBakery Page Builder versions up to 8.4.1 contain a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts. The vulnerability affects the page builder interface and can impact other users viewing affected pages. An attacker with low-level access can inject code that executes in the browsers of site visitors and administrators.
What an attacker can do
03Attacker Capabilities
Inject malicious JavaScript that runs in other users' browsers when they view or edit pages.
Potential impact on your site
04Site Impact
Attackers with contributor/editor access can steal admin credentials, modify page content, or compromise visitor sessions.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege user account (e.g., contributor or editor role) on the WordPress site.
Key dates
06Disclosure timeline
June 19, 2025
CVE published
April 8, 2026
Record updated
