CVE-2025-50699 identifies a Cross Site Scripting (XSS) vulnerability in the PHPGurukul Online DJ Booking Management System version 2.0, specifically within the file odms/admin/view-user-queries.php. This vulnerability arises when user-supplied input is not properly sanitized or encoded before being rendered in the administrative interface, allowing an attacker to inject malicious scripts. When an administrator or authorized user views the affected page, the injected script executes in their browser context. This can lead to session hijacking, credential theft, or unauthorized actions performed with the privileges of the admin user. The vulnerability is classified as reflected or stored XSS depending on the input handling, but the exact subtype is not specified. No CVSS score is assigned, and no patches or known exploits in the wild are currently reported. The affected version is 2.0, but no further version details or vendor advisories are provided. The vulnerability requires that an attacker can submit crafted input that is later viewed by an admin user, implying some level of user interaction and authentication is necessary to exploit it. The lack of a CVSS score and patch links suggests this is a newly disclosed vulnerability with limited public information.

For European organizations using the PHPGurukul Online DJ Booking Management System 2.0, this XSS vulnerability poses a risk primarily to the confidentiality and integrity of administrative sessions and data. Successful exploitation could allow attackers to hijack admin sessions, steal sensitive booking or user data, or perform unauthorized administrative actions such as modifying bookings or user queries. This could disrupt business operations, damage reputation, and lead to data breaches involving personal information of customers or staff. Given the administrative nature of the affected page, the impact on availability is likely limited but could occur if attackers inject scripts that cause denial of service or administrative lockout. The threat is more pronounced in organizations where this system is integrated with other internal tools or databases, potentially allowing lateral movement or further compromise. Since the system is niche and specific to DJ booking management, the overall impact is moderate but significant for affected entities, especially those handling large volumes of personal or financial data. The absence of known exploits reduces immediate risk but does not eliminate the potential for targeted attacks, especially in environments with less stringent input validation or monitoring.

Organizations should immediately review and restrict access to the odms/admin/view-user-queries.php page to trusted administrators only, implementing strict access controls and monitoring. Input validation and output encoding should be enforced on all user-supplied data displayed in the admin interface to prevent script injection. Specifically, the development team should sanitize inputs using context-appropriate encoding (e.g., HTML entity encoding) before rendering. If source code access is available, developers should implement Content Security Policy (CSP) headers to limit script execution and reduce XSS impact. Regular security audits and penetration testing focusing on input handling in the booking management system are recommended. Until an official patch is released, consider deploying Web Application Firewalls (WAFs) with custom rules to detect and block suspicious payloads targeting the vulnerable endpoint. Additionally, administrators should be trained to recognize suspicious activity and avoid clicking on untrusted links or inputs within the system. Backup procedures should be reviewed to ensure quick recovery in case of compromise. Finally, organizations should monitor vendor communications for updates or patches addressing this vulnerability.