CVE-2025-52760 identifies a reflected Cross-site Scripting (XSS) vulnerability in the Globalis MultiSite Clone Duplicator WordPress plugin, specifically affecting versions up to 1.5.3. This vulnerability stems from improper neutralization of user-supplied input during the generation of web pages, which allows an attacker to inject malicious JavaScript code into URLs or form inputs that are reflected back in the HTTP response without adequate sanitization. When a victim clicks on a crafted link or visits a maliciously manipulated page, the injected script executes in their browser context, potentially leading to session hijacking, credential theft, or unauthorized actions performed on behalf of the user. The vulnerability does not require the attacker to have any privileges (no authentication needed), but it does require user interaction (clicking a link or visiting a malicious page). The CVSS v3.1 base score is 6.1, indicating a medium severity level, with attack vector being network (remote), low attack complexity, no privileges required, user interaction required, and impacts on confidentiality and integrity but not availability. The scope is changed, meaning the vulnerability can affect resources beyond the initially vulnerable component, possibly impacting the entire multisite environment. No known exploits are reported in the wild as of the publication date. The plugin is used primarily in WordPress multisite environments to clone and duplicate sites, which are common in enterprise and agency contexts for managing multiple websites under a single installation. The vulnerability could be exploited to steal cookies, tokens, or other sensitive information, or to manipulate site content displayed to users.

For European organizations, this vulnerability poses a moderate risk primarily to the confidentiality and integrity of user data and site content. Organizations using WordPress multisite installations with the Globalis MultiSite Clone Duplicator plugin are at risk of attackers executing malicious scripts in the browsers of administrators or site visitors. This can lead to session hijacking, unauthorized actions, or data leakage. Given the widespread use of WordPress in Europe, especially among SMEs and digital agencies, the impact could be significant in sectors relying on multisite management for efficiency. Additionally, compromised sites could be used as a foothold for further attacks or to distribute malware. The reflected XSS nature means phishing campaigns could leverage this vulnerability to trick users into clicking malicious links, increasing the attack surface. The medium severity suggests that while the threat is not critical, it should not be ignored, especially in regulated industries where data protection is paramount. Failure to address this vulnerability could result in reputational damage, regulatory fines under GDPR, and operational disruptions.

1. Monitor the Globalis plugin repository and official channels for patches or updates addressing CVE-2025-52760 and apply them promptly. 2. In the absence of an immediate patch, implement Web Application Firewall (WAF) rules specifically targeting reflected XSS patterns related to the plugin’s URL parameters and inputs. 3. Conduct a thorough review of all user input handling in the multisite environment, ensuring strict input validation and output encoding, particularly for parameters reflected in web pages. 4. Educate administrators and users about the risks of clicking unsolicited or suspicious links, especially those that appear to interact with multisite clone functionality. 5. Employ Content Security Policy (CSP) headers to restrict the execution of inline scripts and reduce the impact of potential XSS payloads. 6. Regularly audit multisite installations for unauthorized changes or suspicious activity that could indicate exploitation attempts. 7. Limit exposure by restricting access to multisite clone functionalities to trusted users and IP ranges where feasible. 8. Use security plugins that provide XSS protection and monitor for anomalous behavior related to the plugin’s operations.