CVE-2025-9204 is a stored Cross-Site Scripting (XSS) vulnerability found in the X Addons for Elementor plugin for WordPress, specifically affecting all versions up to and including 1.0.14. The vulnerability arises from improper neutralization of input during web page generation (CWE-79), where the Youtube Video ID field does not sufficiently sanitize or escape user-supplied input. This flaw allows an authenticated attacker with contributor-level access or higher to inject arbitrary malicious scripts into pages. These scripts execute in the context of any user who views the affected page, potentially leading to session hijacking, privilege escalation, or other malicious actions. The vulnerability requires no user interaction beyond visiting the compromised page, and the attacker must have at least contributor privileges, which are commonly granted to trusted users who can add or edit content but do not have full administrative rights. The CVSS v3.1 base score is 6.4, reflecting a medium severity with network attack vector, low attack complexity, privileges required, no user interaction, and a scope change. The impact affects confidentiality and integrity but not availability. No known exploits are currently reported in the wild, and no official patches have been linked yet. The vulnerability is significant because Elementor is a widely used WordPress page builder, and the X Addons plugin extends its functionality, making this a relevant threat to many WordPress sites using these tools.

For European organizations, this vulnerability poses a risk primarily to websites and web applications built on WordPress that utilize the Elementor page builder with the X Addons plugin. Exploitation could lead to unauthorized script execution, enabling attackers to steal session cookies, deface websites, redirect users to malicious sites, or conduct phishing attacks. This can damage brand reputation, lead to data breaches involving user information, and potentially violate GDPR requirements concerning data protection and breach notification. Since contributor-level access is required, insider threats or compromised contributor accounts could be leveraged to exploit this vulnerability. Organizations relying on WordPress for customer-facing portals, e-commerce, or internal collaboration platforms could face significant operational and reputational impacts if exploited.

Organizations should immediately audit their WordPress installations to identify the presence of the X Addons for Elementor plugin and verify the version in use. Until an official patch is released, the following specific mitigations are recommended: 1) Restrict contributor-level access strictly to trusted users and review user roles and permissions regularly. 2) Implement Web Application Firewall (WAF) rules to detect and block suspicious payloads targeting the Youtube Video ID parameter. 3) Employ Content Security Policy (CSP) headers to limit the execution of unauthorized scripts on affected pages. 4) Monitor logs for unusual activity related to content creation or modification involving the Youtube Video ID field. 5) Consider temporarily disabling or removing the vulnerable plugin if feasible. 6) Educate content contributors about the risks of injecting untrusted content and enforce input validation policies. Once a patch is available, prioritize timely updates to the plugin to remediate the vulnerability fully.