CVE-2025-14205 identifies a cross-site scripting vulnerability in the code-projects Chamber of Commerce Membership Management System version 1.0, specifically in the /membership_profile.php file's Your Info Handler component. The vulnerability arises from improper sanitization of user-supplied input fields such as Full Name, Address, City, and State, which are reflected in the application without adequate encoding or validation. This allows an attacker to inject malicious JavaScript code that executes in the browser of any user viewing the affected page. The attack vector is remote and does not require prior authentication, although user interaction is necessary to trigger the payload, such as by viewing a crafted profile page. The CVSS 4.0 vector indicates network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:H indicates high privileges required, but the vector states PR:H which conflicts with AT:N; assuming the CVSS vector is accurate, it requires high privileges), user interaction required (UI:P), and low impact on integrity and no impact on confidentiality or availability. The vulnerability could be exploited to steal session cookies, perform actions on behalf of the user, or deface the user interface. No patches have been linked yet, and no known exploits are active in the wild, but public exploit code exists, increasing the risk of exploitation. Organizations using this software should assess exposure and implement mitigations promptly.

For European organizations, this vulnerability poses a risk primarily to the confidentiality and integrity of user sessions and data within chamber of commerce membership management portals. Successful exploitation could lead to session hijacking, unauthorized actions performed under a legitimate user's credentials, and potential data leakage or manipulation. This could undermine trust in the affected organizations and disrupt membership services. Given the role of chambers of commerce in facilitating business operations and networking, disruption or compromise could have broader economic implications. The medium severity rating reflects limited impact on availability and confidentiality but highlights the risk of integrity violations and user impersonation. Organizations with public-facing membership management systems are particularly vulnerable, especially if they do not employ additional security controls such as Content Security Policy (CSP) or input sanitization. The lack of authentication requirement for the attack vector increases risk, although user interaction is needed to trigger the exploit. European entities handling sensitive membership data or providing critical business services through this platform should prioritize mitigation to prevent reputational damage and operational disruption.

1. Implement strict input validation and sanitization on all user-supplied fields, especially Full Name, Address, City, and State, to ensure that no executable scripts can be injected. 2. Apply proper output encoding (e.g., HTML entity encoding) before rendering user inputs on web pages to prevent script execution. 3. Deploy Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts in the browser context. 4. Conduct regular security audits and code reviews focusing on input handling and output rendering in the affected component. 5. Educate users and administrators about the risks of XSS and encourage cautious behavior when interacting with untrusted content. 6. Monitor web application logs for suspicious activity indicative of attempted XSS exploitation. 7. If possible, isolate the membership management system behind additional security layers such as web application firewalls (WAFs) configured to detect and block XSS payloads. 8. Engage with the vendor or development community to obtain or develop patches addressing this vulnerability. 9. Consider temporary disabling or restricting access to the vulnerable component until a fix is applied. 10. Ensure that session management employs secure flags (HttpOnly, Secure) to reduce the impact of potential cookie theft.