CVE-2025-13076 identifies a SQL injection vulnerability in the Responsive Hotel Site version 1.0 developed by code-projects. The vulnerability exists in an unspecified function within the /admin/usersetting.php file, where the 'usname' parameter is improperly sanitized, allowing attackers to inject malicious SQL code. This flaw can be exploited remotely without user interaction but requires the attacker to have high privileges (likely administrative access) on the system. The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P) indicates network attack vector, low attack complexity, no authentication bypass, but high privileges required, and partial impact on confidentiality, integrity, and availability. The vulnerability could allow attackers to read or modify sensitive data in the backend database, potentially leading to data leakage, unauthorized data manipulation, or denial of service conditions. Although no active exploitation has been reported, a public exploit is available, increasing the risk of future attacks. The lack of an official patch at the time of reporting necessitates immediate mitigation efforts by affected organizations. Given the nature of the software—hotel management web application—compromise could affect customer data and operational integrity.

For European organizations, especially those in the hospitality sector using the Responsive Hotel Site 1.0, this vulnerability poses risks of unauthorized access to sensitive customer and operational data. Successful exploitation could lead to data breaches involving personal identifiable information (PII), reservation details, and payment information, undermining customer trust and violating GDPR regulations. Integrity of booking and user management data could be compromised, potentially disrupting hotel operations and causing financial losses. Availability impacts, while partial, could affect administrative functions, delaying critical management tasks. The requirement for high privileges reduces the likelihood of widespread exploitation but elevates the risk from insider threats or compromised administrative accounts. The presence of a public exploit increases the urgency for mitigation to prevent targeted attacks. European organizations face reputational damage and regulatory penalties if breaches occur due to this vulnerability.

Organizations should immediately audit and restrict administrative access to the Responsive Hotel Site, ensuring only trusted personnel have high-level privileges. Implement network segmentation and firewall rules to limit access to the /admin directory from trusted IP addresses only. Employ web application firewalls (WAFs) with custom rules to detect and block SQL injection attempts targeting the 'usname' parameter. Conduct thorough input validation and sanitization on all user-supplied data, especially in administrative interfaces. Monitor logs for suspicious activities related to SQL injection patterns. Since no official patch is currently available, consider temporary mitigation by disabling or restricting the vulnerable functionality if feasible. Plan for rapid deployment of vendor patches once released. Additionally, conduct regular security assessments and penetration testing focused on administrative modules to identify similar vulnerabilities.