CVE-2024-2142 in Ultimate Addons for Beaver Builder Plugin
Summary
by MITRE • 03/30/2024
The Ultimate Addons for Beaver Builder – Lite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Info Table widget in all versions up to, and including, 1.5.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
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Analysis
by VulDB Data Team • 04/14/2026
The vulnerability identified as CVE-2024-2142 affects the Ultimate Addons for Beaver Builder – Lite plugin for WordPress, specifically targeting the Info Table widget functionality. This represents a critical security flaw that undermines the integrity of WordPress sites utilizing this plugin, as it allows authenticated attackers with contributor-level privileges or higher to execute malicious code through persistent cross-site scripting attacks. The vulnerability exists within a widely used page builder extension that enhances WordPress functionality through visual editing capabilities, making it particularly concerning given its potential for widespread impact across numerous websites.
The technical root cause of this vulnerability stems from inadequate input sanitization and insufficient output escaping mechanisms within the plugin's codebase. When users with contributor-level access or above create or modify content using the Info Table widget, the plugin fails to properly validate or sanitize user-supplied input before storing it in the database. This stored data is then subsequently rendered without proper HTML escaping, creating an environment where malicious scripts can be injected and executed when other users access pages containing the compromised content. The vulnerability specifically manifests in the Info Table widget, which is designed to display structured data in tabular format but becomes a vector for script injection due to the lack of proper security controls.
The operational impact of this vulnerability extends beyond simple script execution, as it provides attackers with persistent access to compromised WordPress installations. Since contributors typically have the ability to create and edit posts, pages, and media, an attacker with these privileges can inject malicious scripts that will execute whenever any user accesses the affected pages. This creates a persistent threat vector that can be used to steal session cookies, redirect users to malicious sites, perform unauthorized actions on behalf of logged-in users, or even escalate privileges further within the compromised environment. The vulnerability affects all versions up to and including 1.5.7, meaning that a significant number of plugin installations remain at risk.
Security professionals should note that this vulnerability aligns with CWE-79 which specifically addresses Cross-Site Scripting flaws in web applications, and it also relates to ATT&CK technique T1566 which covers spearphishing attacks that may lead to credential theft. Organizations should prioritize immediate remediation by updating to the latest version of the Ultimate Addons for Beaver Builder – Lite plugin where this vulnerability has been addressed. Additionally, administrators should implement monitoring for suspicious user activities and consider implementing additional security measures such as web application firewalls to detect and prevent exploitation attempts. The vulnerability demonstrates the critical importance of input validation and output escaping in web applications, particularly within content management systems where user-generated content is processed and displayed.