CVE-2025-5284 is a stored cross-site scripting vulnerability in the Master Addons for Elementor plugin for WordPress, specifically in the Custom JS extension. This vulnerability allows authenticated users with Contributor-level privileges or above to inject arbitrary web scripts due to insufficient capability restrictions and lack of proper input sanitization and output escaping. The injected scripts execute when any user accesses the compromised page, potentially leading to session hijacking or other script-based attacks. The vulnerability affects all versions up to and including 2.0.8.2. The CVSS 3.1 score is 6.4 (medium severity), reflecting network attack vector, low attack complexity, required privileges, no user interaction, and partial impact on confidentiality and integrity. No patch or vendor advisory is currently available, and no known exploits have been reported.

An attacker with Contributor-level or higher access can inject malicious JavaScript code into pages via the Custom JS extension. This code executes in the context of users viewing the affected pages, potentially compromising user sessions or performing unauthorized actions. The vulnerability impacts confidentiality and integrity but does not affect availability. There are no known active exploits in the wild.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict Contributor-level access to trusted users only and consider disabling or limiting use of the Custom JS extension to reduce risk.