CVE-2025-50985 identifies multiple reflected cross-site scripting (XSS) vulnerabilities in diskover-web version 2.3.0 Community Edition. The vulnerability arises because several GET parameters—specifically maxage, maxindex, index, path, q (query), and doctype—are not properly sanitized before being reflected in the HTML response of the web interface. This lack of input validation allows an attacker to craft malicious URLs containing arbitrary JavaScript code within these parameters. When a victim accesses such a URL, the injected script executes in the context of the victim's browser session, potentially leading to session hijacking, credential theft, unauthorized actions on behalf of the user, or redirection to malicious sites. Since the vulnerability is reflected XSS, it requires the victim to click or visit a maliciously crafted link, but no authentication is required for exploitation, as the vulnerability exists in the publicly accessible web interface. There is no CVSS score assigned yet, and no known exploits have been reported in the wild. The affected version is specifically diskover-web v2.3.0 Community Edition, with no other versions explicitly mentioned. The vulnerability is categorized as a web application security flaw impacting confidentiality and integrity primarily through client-side script execution.

For European organizations using diskover-web v2.3.0 Community Edition, this vulnerability poses a risk of client-side attacks that can compromise user sessions and data confidentiality. Organizations relying on diskover-web for file indexing and search functionality may expose their users to phishing, credential theft, or unauthorized actions if attackers successfully lure users into clicking malicious URLs. This can lead to data leakage, unauthorized access to sensitive file metadata, or manipulation of user interactions within the application. The impact is heightened in environments where diskover-web is integrated into broader enterprise workflows or where sensitive data is accessible through the interface. Additionally, regulatory frameworks such as GDPR impose strict requirements on protecting personal data, and exploitation of this vulnerability could lead to compliance violations and reputational damage. While the vulnerability does not directly affect server availability or integrity, the potential for session hijacking and data exposure makes it a significant concern for organizations with European user bases.

To mitigate this vulnerability, organizations should prioritize upgrading diskover-web to a version where the reflected XSS flaws are patched once available. In the interim, implement web application firewall (WAF) rules to detect and block suspicious requests containing script payloads in the affected GET parameters (maxage, maxindex, index, path, q, doctype). Input validation and output encoding should be enforced at the application layer to sanitize user-supplied input before reflection in HTML responses. Employ Content Security Policy (CSP) headers to restrict the execution of inline scripts and reduce the impact of XSS attacks. Educate users about the risks of clicking untrusted links and encourage the use of security-aware browsing practices. Regularly monitor web server logs for unusual query parameter patterns indicative of attempted exploitation. Finally, conduct security assessments and penetration testing focused on web interface input handling to identify and remediate similar vulnerabilities proactively.