CVE-2025-52760 is a reflected Cross-site Scripting (XSS) vulnerability identified in the Globalis MultiSite Clone Duplicator WordPress plugin, affecting versions up to and including 1.5.3. The vulnerability stems from improper neutralization of user-supplied input during web page generation, which allows attackers to inject malicious JavaScript code that is reflected back to the user. This type of vulnerability enables attackers to execute arbitrary scripts in the context of the victim’s browser, potentially leading to session hijacking, theft of sensitive information such as cookies or credentials, and unauthorized actions performed on behalf of the user. The CVSS v3.1 base score of 6.1 reflects a medium severity level, with an attack vector of network (AV:N), low attack complexity (AC:L), no privileges required (PR:N), but requiring user interaction (UI:R). The scope is changed (S:C), indicating that the vulnerability can affect resources beyond the initially vulnerable component. The impact affects confidentiality and integrity (C:L/I:L) but not availability (A:N). No known exploits have been reported in the wild as of the publication date. The vulnerability was reserved in June 2025 and published in October 2025. The affected product is commonly used in WordPress multisite environments to clone sites, which may be prevalent in organizations managing multiple web properties. The lack of a patch link suggests that a fix may not yet be publicly available, emphasizing the need for interim mitigations.

For European organizations, the reflected XSS vulnerability in a widely used WordPress plugin can lead to significant risks including unauthorized access to user sessions, data leakage, and potential compromise of administrative accounts if exploited. Organizations operating multisite WordPress installations that use the Globalis MultiSite Clone Duplicator plugin are at risk of targeted attacks that could leverage this vulnerability to conduct phishing campaigns or spread malware. The impact is particularly relevant for sectors with high reliance on web presence and customer interaction such as e-commerce, government portals, and media companies. Confidentiality breaches could expose personal data of European citizens, raising compliance concerns under GDPR. Although the vulnerability does not directly affect system availability, the indirect consequences of compromised user accounts or injected malicious content could disrupt business operations and damage reputation. The medium severity rating indicates that while the threat is not critical, it requires timely attention to prevent exploitation.

European organizations should take proactive steps to mitigate this vulnerability. First, monitor for updates or patches released by Globalis and apply them promptly once available. Until a patch is released, implement Web Application Firewalls (WAFs) with robust XSS filtering rules to detect and block malicious payloads targeting this vulnerability. Conduct thorough input validation and output encoding on any custom code interacting with the plugin or multisite cloning features. Limit exposure by restricting access to the plugin’s administrative interfaces to trusted IP addresses or VPN users. Educate users and administrators about the risks of clicking on suspicious links, as exploitation requires user interaction. Regularly audit multisite WordPress environments for unauthorized changes or suspicious activity. Consider disabling or replacing the plugin if it is not essential or if no timely patch is forthcoming. Finally, maintain comprehensive logging and monitoring to detect potential exploitation attempts early.