CVE-2025-63044 is a DOM-based Cross-site Scripting (XSS) vulnerability identified in the Xpro Elementor Addons WordPress plugin, specifically affecting versions up to and including 1.4.19.1. This vulnerability stems from improper neutralization of input during web page generation, which allows malicious actors to inject and execute arbitrary JavaScript code within the browsers of users visiting affected websites. Unlike reflected or stored XSS, DOM-based XSS occurs entirely on the client side, manipulating the Document Object Model without server-side code injection, making detection and mitigation more challenging. Exploiting this vulnerability requires the attacker to craft a malicious URL or input that triggers the vulnerable script, leading to execution of attacker-controlled code in the victim’s browser context. Potential consequences include theft of session cookies, redirection to malicious sites, defacement, or unauthorized actions performed with the victim’s privileges. Although no public exploits have been reported yet, the vulnerability is classified as published and should be treated with urgency. The plugin is widely used in WordPress environments to extend Elementor page builder functionalities, making a broad range of websites potentially vulnerable. The absence of a CVSS score necessitates an independent severity assessment based on the vulnerability’s characteristics and impact.

For European organizations, the impact of this vulnerability can be significant, especially for those relying on WordPress with the Xpro Elementor Addons plugin for their web presence. Successful exploitation could compromise user sessions, leading to data breaches involving personal or sensitive information, which would have regulatory implications under GDPR. Attackers could also manipulate website content or redirect users to phishing or malware sites, damaging brand reputation and customer trust. Sectors such as e-commerce, media, education, and government services, which often use WordPress extensively, are particularly at risk. Additionally, the vulnerability could be leveraged as a foothold for further attacks within the network if attackers gain administrative access through session hijacking. The lack of authentication requirements and the ease of exploitation increase the likelihood of attacks, potentially affecting availability through defacement or malicious script execution. Overall, the vulnerability poses a high risk to confidentiality, integrity, and availability of affected web assets in Europe.

1. Monitor for official patches or updates from the Xpro Elementor Addons vendor and apply them immediately once available. 2. Implement strict Content Security Policies (CSP) to restrict the execution of unauthorized scripts and reduce the impact of XSS attacks. 3. Conduct a thorough audit of all user inputs and URL parameters processed by the plugin, ensuring proper sanitization and encoding to neutralize malicious payloads. 4. Employ Web Application Firewalls (WAF) with rules specifically designed to detect and block DOM-based XSS attack patterns targeting WordPress plugins. 5. Educate web administrators and developers about the risks of DOM-based XSS and best practices for secure coding and input handling. 6. Regularly scan websites using vulnerability assessment tools that can detect DOM-based XSS issues. 7. Limit plugin usage to only necessary features and consider alternative plugins with better security track records if timely patches are not forthcoming. 8. Implement multi-factor authentication (MFA) for administrative access to reduce the impact of session hijacking.