CVE-2025-54050 is a medium-severity stored Cross-Site Scripting (XSS) vulnerability identified in the CyberChimps Responsive Addons for Elementor plugin, affecting versions up to 1.7.3. This vulnerability arises from improper neutralization of input during web page generation, classified under CWE-79. Specifically, the plugin fails to adequately sanitize or encode user-supplied input before rendering it on web pages, allowing an attacker to inject malicious scripts that are persistently stored and executed in the context of users visiting the affected site. The CVSS v3.1 base score is 6.5, reflecting a network attack vector (AV:N), low attack complexity (AC:L), requiring privileges (PR:L) and user interaction (UI:R), with a scope change (S:C) and low impact on confidentiality, integrity, and availability (C:L/I:L/A:L). The vulnerability requires an attacker to have some level of authenticated access (likely contributor or editor roles) to inject the malicious payload, which is then stored and executed when other users view the compromised content. Although no known exploits are currently reported in the wild, the stored XSS nature makes it a significant risk for website defacement, session hijacking, or delivering further malware. The lack of available patches at the time of publication necessitates immediate attention from site administrators using this plugin. Given that Elementor is a widely used WordPress page builder and CyberChimps Responsive Addons extend its functionality, this vulnerability could affect numerous websites relying on these tools for responsive design elements.

For European organizations, especially those operating public-facing websites built on WordPress with Elementor and CyberChimps Responsive Addons, this vulnerability poses a risk of client-side attacks leading to session hijacking, unauthorized actions on behalf of users, or distribution of malicious content. This can result in reputational damage, loss of customer trust, and potential regulatory penalties under GDPR if personal data is compromised or if the attack leads to unauthorized data access. The stored XSS can also be leveraged to target administrative users, potentially escalating to full site compromise. Organizations in sectors such as e-commerce, government, education, and media, which often rely on WordPress for content management, are particularly vulnerable. The requirement for some level of authenticated access reduces the risk from anonymous attackers but highlights the importance of internal user access controls. The medium severity score indicates moderate urgency but should not be underestimated given the potential for chained attacks and the broad usage of the affected plugin in Europe.

1. Immediately audit user roles and permissions to restrict access to trusted users only, minimizing the risk of malicious input injection. 2. Monitor and review all user-generated content for suspicious scripts or anomalies, especially from users with contributor or editor roles. 3. Implement Web Application Firewall (WAF) rules specifically targeting XSS payload patterns to block malicious requests before they reach the application. 4. Disable or remove the CyberChimps Responsive Addons for Elementor plugin until a security patch is released. 5. Employ Content Security Policy (CSP) headers to restrict the execution of inline scripts and reduce the impact of potential XSS attacks. 6. Regularly update WordPress core, themes, and plugins to incorporate security patches as soon as they become available. 7. Educate content editors and administrators about the risks of XSS and safe content handling practices. 8. Conduct regular security scans and penetration tests focusing on input validation and stored content vulnerabilities.