CVE-2025-11946 is a cross-site scripting (XSS) vulnerability identified in LogicalDOC Community Edition versions 9.2.0 and 9.2.1, specifically within the /frontend.jsp file of the Add Contact Page component. The vulnerability arises from improper sanitization and validation of user-supplied input fields including First Name, Last Name, Company, Address, Phone, and Mobile. An attacker can craft malicious input that, when processed by the vulnerable page, results in the execution of arbitrary JavaScript code in the context of the victim's browser. This can lead to session hijacking, theft of sensitive information, or execution of unauthorized actions on behalf of the user. The vulnerability is remotely exploitable without requiring authentication, though it does require user interaction to trigger the malicious payload. The vendor was notified early but has not issued a patch or response, and the exploit code has been publicly released, increasing the risk of exploitation. The CVSS 4.0 base score is 5.1, reflecting medium severity, with network attack vector, low attack complexity, no privileges required, but requiring user interaction. No known exploits in the wild have been reported yet. The lack of vendor response and patch availability necessitates immediate attention from users of affected versions. LogicalDOC is a document management system used for organizing and managing digital documents, and this vulnerability could compromise the confidentiality and integrity of stored information if exploited.

For European organizations, exploitation of this XSS vulnerability could lead to unauthorized access to sensitive document management interfaces, theft of session cookies, and potential compromise of user accounts. This can result in data leakage, unauthorized document modification, or further lateral movement within the network. Since LogicalDOC is used to manage critical business documents, the integrity and confidentiality of corporate data could be at risk. The remote and unauthenticated nature of the exploit increases the attack surface, especially for organizations exposing LogicalDOC interfaces to the internet or large internal user bases. Public exploit availability raises the likelihood of opportunistic attacks, potentially targeting sectors with high document management needs such as legal, financial, and governmental institutions. The absence of vendor patches means organizations must rely on interim mitigations, increasing operational risk. Additionally, exploitation could undermine compliance with European data protection regulations like GDPR if personal or sensitive data is exposed.

1. Immediately restrict external access to the LogicalDOC Community Edition interface, especially the /frontend.jsp Add Contact Page, using network segmentation or firewall rules. 2. Implement web application firewall (WAF) rules to detect and block malicious input patterns targeting the affected fields. 3. Apply strict input validation and output encoding on all user-supplied data fields (First Name, Last Name, Company, Address, Phone, Mobile) to neutralize potential XSS payloads. 4. Monitor application logs and user activity for unusual behavior indicative of XSS exploitation attempts. 5. Educate users to be cautious of suspicious links or inputs that could trigger XSS attacks. 6. Consider deploying browser security features such as Content Security Policy (CSP) to limit script execution. 7. Track vendor communications for any forthcoming patches or updates and plan for immediate application once available. 8. If feasible, upgrade to a non-vulnerable version or alternative document management solutions until a patch is released. 9. Conduct internal penetration testing to identify any additional exposure related to this vulnerability. 10. Maintain regular backups of critical documents to mitigate impact from potential compromise.