CVE-2025-6251 is a stored cross-site scripting vulnerability identified in the Royal Addons for Elementor – Addons and Templates Kit for Elementor WordPress plugin, affecting all versions up to and including 1.7.1036. The vulnerability arises from improper neutralization of input during web page generation, specifically via the $item['field_id'] parameter. This parameter is insufficiently sanitized and escaped before being rendered in pages, allowing authenticated users with Contributor-level access or higher to inject arbitrary JavaScript code. Because the vulnerability is stored, the malicious script persists in the database and executes whenever any user accesses the infected page, potentially compromising user sessions, stealing cookies, or performing actions on behalf of users. The CVSS 3.1 base score is 6.4, reflecting a medium severity with network attack vector, low attack complexity, requiring privileges (Contributor or above), no user interaction, and a scope change (affecting resources beyond the vulnerable component). The vulnerability does not currently have known exploits in the wild, but the ease of exploitation by authenticated users and the widespread use of WordPress and Elementor plugins make it a significant concern. The lack of an official patch at the time of reporting increases exposure. This vulnerability highlights the risks of insufficient input validation and output encoding in web applications, especially in plugins that extend popular CMS platforms.

For European organizations, this vulnerability poses a risk to the confidentiality and integrity of their WordPress-based websites. Attackers with Contributor-level access can inject malicious scripts that execute in the browsers of site visitors and administrators, potentially leading to session hijacking, unauthorized actions, data theft, or defacement. This can damage organizational reputation, lead to data breaches involving personal or sensitive information, and disrupt business operations. Since WordPress is widely used across Europe for corporate websites, e-commerce, and content management, the attack surface is substantial. Organizations with multiple contributors or less restrictive access controls are particularly vulnerable. Additionally, the scope change in the CVSS vector indicates that the vulnerability could affect components beyond the plugin itself, potentially impacting other integrated systems or user data. The absence of known exploits currently provides a window for proactive mitigation, but the medium severity and ease of exploitation by authenticated users necessitate urgent attention.

1. Monitor for and apply official patches or updates from the wproyal vendor as soon as they become available to remediate the vulnerability. 2. Until a patch is released, restrict Contributor-level and higher privileges to trusted users only, minimizing the risk of malicious script injection. 3. Implement strict input validation and output encoding on custom implementations or overrides involving the $item['field_id'] parameter or similar inputs. 4. Deploy a Web Application Firewall (WAF) with rules specifically targeting stored XSS attacks, including those targeting WordPress plugins. 5. Conduct regular security audits and code reviews of WordPress plugins and themes to identify and remediate insecure coding practices. 6. Educate content contributors about the risks of injecting untrusted content and enforce policies to prevent misuse of plugin features. 7. Enable Content Security Policy (CSP) headers to reduce the impact of injected scripts by restricting script sources. 8. Maintain regular backups of website data to enable recovery in case of compromise. 9. Monitor website logs and user activity for unusual behavior indicative of exploitation attempts.