CVE-2025-14006 is a cross-site scripting vulnerability identified in dayrui XunRuiCMS versions 4.7.0 and 4.7.1. The flaw resides in the Add Data Validation Page functionality, specifically in the handling of the data[name] parameter within the /admind45f74adbd95.php?c=field&m=add&rname=site&rid=1&page=1 endpoint. An attacker can remotely craft malicious input to this parameter, which is insufficiently sanitized, allowing the injection and execution of arbitrary JavaScript code in the context of an authenticated user's browser. The attack does not require authentication but does require user interaction, such as clicking a crafted link or visiting a malicious page. The vulnerability could be exploited to steal session cookies, perform actions on behalf of the user, or deface the CMS interface. Despite early notification, the vendor has not responded or issued a patch, increasing the risk of exploitation. The CVSS 4.0 vector indicates network attack vector, low attack complexity, no privileges required, user interaction needed, and limited impact on integrity and availability, resulting in a medium severity rating with a score of 5.1. No known exploits in the wild have been reported yet, but public exploit details exist, making timely mitigation critical.

For European organizations using dayrui XunRuiCMS, this vulnerability poses a moderate risk. Successful exploitation can lead to session hijacking, unauthorized actions, or defacement, undermining the confidentiality and integrity of web applications. This can damage organizational reputation, lead to data breaches, or disrupt services. Sectors such as government, education, and SMEs that rely on XunRuiCMS for content management are particularly at risk. The lack of vendor response and patch availability increases exposure time. Attackers could leverage this vulnerability in targeted phishing campaigns or automated scanning to compromise multiple sites. While the impact on availability is limited, the potential for data theft and unauthorized access makes this a significant concern for compliance with European data protection regulations like GDPR. Organizations may face legal and financial consequences if exploited.

European organizations should immediately audit their use of dayrui XunRuiCMS to identify affected versions (4.7.0 and 4.7.1). Since no official patch is available, implement the following mitigations: 1) Apply web application firewall (WAF) rules to detect and block malicious payloads targeting the data[name] parameter, focusing on script injection patterns. 2) Employ strict Content Security Policy (CSP) headers to restrict script execution and reduce the impact of XSS. 3) Sanitize and validate all user inputs on the server side, especially for the vulnerable endpoint, possibly by customizing or patching the CMS code to escape or reject unsafe characters in data[name]. 4) Educate users and administrators about phishing risks and suspicious links to reduce user interaction exploitation. 5) Monitor logs for unusual requests to /admind45f74adbd95.php and anomalous user behavior. 6) Consider isolating or restricting access to the CMS admin interface via VPN or IP whitelisting to reduce exposure. 7) Plan for migration or upgrade to a patched version once available or consider alternative CMS platforms if no vendor support is forthcoming.