CVE-2025-6251 identifies a stored Cross-Site Scripting (XSS) vulnerability in the Royal Addons for Elementor – Addons and Templates Kit for Elementor WordPress plugin, specifically in all versions up to and including 1.7.1036. The vulnerability arises from improper neutralization of input during web page generation (CWE-79), where the plugin fails to sufficiently sanitize and escape the $item['field_id'] parameter. This flaw allows authenticated attackers with Contributor-level privileges or higher to inject arbitrary JavaScript code into pages managed by the plugin. Because the malicious script is stored on the server, it executes every time a user accesses the infected page, potentially compromising user sessions, stealing cookies, or performing unauthorized actions on behalf of users. The attack vector requires authentication but no user interaction, increasing the risk within environments where multiple users have content editing privileges. The CVSS 3.1 base score of 6.4 reflects a medium severity, with network attack vector, low attack complexity, and privileges required. The scope is changed (S:C) because the vulnerability affects resources beyond the attacker’s privileges, impacting other users. No public exploits are currently known, but the vulnerability's presence in a popular WordPress plugin makes it a credible threat. The absence of a patch link suggests that a fix may not yet be released, emphasizing the need for interim mitigations. This vulnerability is particularly relevant for websites relying on the Royal Addons plugin for content management and design, as it undermines the integrity and confidentiality of user sessions and data.

For European organizations, this vulnerability poses a significant risk to the confidentiality and integrity of their web platforms, especially those using WordPress with the Royal Addons for Elementor plugin. Attackers with contributor-level access can inject malicious scripts that execute in the browsers of site visitors and administrators, potentially leading to session hijacking, credential theft, unauthorized actions, or defacement. This can damage organizational reputation, lead to data breaches, and disrupt business operations. Since many European companies rely on WordPress for their websites and intranets, the vulnerability could affect a broad range of sectors including e-commerce, media, education, and government. The medium severity score indicates a moderate but non-negligible risk, particularly in environments with multiple content contributors. The lack of known exploits reduces immediate risk but does not eliminate the threat, as attackers may develop exploits once the vulnerability becomes widely known. Additionally, the vulnerability could be leveraged as a foothold for more sophisticated attacks or lateral movement within compromised networks.

Organizations should prioritize updating the Royal Addons for Elementor plugin to a patched version as soon as it becomes available. Until a patch is released, administrators should restrict Contributor-level access to trusted users only and audit existing contributors for suspicious activity. Implementing Web Application Firewall (WAF) rules to detect and block suspicious input patterns targeting the $item['field_id'] parameter can provide temporary protection. Additionally, applying strict input validation and output encoding on the server side, if feasible, can mitigate exploitation. Regularly monitoring logs for unusual script injections or unexpected page modifications is recommended. Educating content contributors about the risks of injecting untrusted content and enforcing the principle of least privilege can reduce attack surface. Finally, organizations should consider isolating critical administrative interfaces and enabling multi-factor authentication to limit the impact of compromised accounts.