CVE-2024-0334 in Jeg Elementor Kit Plugin
Summary
by MITRE • 05/01/2024
The Jeg Elementor Kit plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the custom attribute of a link in several Elementor widgets in all versions up to, and including, 2.6.4 due to insufficient input sanitization and output escaping on user supplied attributes. 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 • 04/02/2025
The CVE-2024-0334 vulnerability affects the Jeg Elementor Kit plugin for WordPress, representing a critical stored cross-site scripting flaw that compromises the security of websites using this popular page builder extension. This vulnerability exists in all versions up to and including 2.6.4, making it a widespread concern for WordPress administrators who have implemented this plugin. The flaw specifically targets the custom attribute handling within Elementor widgets, creating a persistent security risk that can be exploited by attackers with relatively low privileges.
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 higher create or modify links within Elementor widgets, the plugin fails to properly validate or sanitize the custom attributes that are associated with these links. This allows malicious actors to inject malicious JavaScript code directly into the link attributes, which are then stored in the WordPress database. The vulnerability is classified as a stored XSS attack because the malicious scripts are persisted in the system rather than being executed only during a single request.
The operational impact of this vulnerability is significant for WordPress websites that utilize the Jeg Elementor Kit plugin, as it provides authenticated attackers with a persistent means of executing arbitrary web scripts on affected sites. Attackers with contributor-level access can inject malicious code that will execute whenever any user accesses a page containing the compromised link, potentially leading to session hijacking, data theft, or further compromise of the website. The vulnerability affects not just the specific pages where the malicious code was injected, but can propagate to any page that displays the compromised content, making it particularly dangerous in multi-user environments where multiple contributors may have access to the site.
This vulnerability aligns with CWE-79, which describes Cross-Site Scripting flaws, and maps to ATT&CK technique T1566.001 for the initial compromise phase through credential access and privilege escalation. The attack vector specifically targets the Elementor widget functionality, which is commonly used in WordPress sites for page building, making this vulnerability particularly relevant for content management systems that rely heavily on visual editors. Organizations should prioritize immediate remediation of this vulnerability by updating to the latest version of the Jeg Elementor Kit plugin, as the current affected versions represent a known security risk that can be exploited by attackers with minimal privileges. The vulnerability demonstrates the critical importance of proper input validation and output escaping in web applications, particularly in plugins that handle user-generated content and dynamic attributes.
The security implications extend beyond immediate script execution to potential long-term compromise of affected websites. When attackers successfully exploit this vulnerability, they can establish persistent backdoors, steal administrator credentials, or manipulate website content to redirect users to malicious sites. The stored nature of the vulnerability means that even if the initial injection is discovered and removed, the malicious code can continue to affect users who access compromised pages. This makes the vulnerability particularly dangerous in environments where multiple users have contributor access or higher permissions, as it provides attackers with a foothold that can be maintained over extended periods without detection.