CVE-2025-11469 identifies a SQL injection vulnerability in SourceCodester Hotel and Lodge Management System version 1.0, specifically in the /pages/save_customer.php script. The vulnerability arises from improper sanitization of the 'Contact' parameter, allowing an attacker to inject malicious SQL code remotely without requiring user interaction. The attack vector is network-based with low attack complexity and no authentication required, but it does require low privileges (PR:L), indicating that some level of user access may be needed, possibly a logged-in user with limited rights. The vulnerability impacts confidentiality, integrity, and availability by enabling unauthorized database queries, which could lead to data leakage, unauthorized data modification, or denial of service through database corruption. Although no exploits have been observed in the wild, public proof-of-concept exploits exist, increasing the risk of exploitation. The vulnerability does not affect system components beyond the database interaction layer, and the scope is limited to the affected version 1.0 of the product. The CVSS 4.0 vector indicates no user interaction is needed, and the attack complexity is low, but the vulnerability has low impact on confidentiality, integrity, and availability individually, resulting in an overall medium severity score of 5.3. The lack of available patches at the time of publication necessitates immediate mitigation through input validation and monitoring. This vulnerability is particularly concerning for organizations in the hospitality sector that rely on this management system for customer data and operational workflows.

For European organizations, exploitation of this SQL injection vulnerability could lead to unauthorized access to sensitive customer data, including personal and contact information, which may violate GDPR and other data protection regulations. Data integrity could be compromised by unauthorized modification or deletion of records, potentially disrupting hotel operations and damaging reputation. Availability risks include potential database corruption or denial of service, affecting booking systems and customer management. The hospitality sector is a significant part of the European economy, especially in countries like Spain, Italy, France, and Germany, making them attractive targets. Compromise of customer data could lead to financial loss, regulatory penalties, and loss of customer trust. Additionally, attackers could leverage the vulnerability as a foothold for further network intrusion or lateral movement within the organization. The medium severity rating suggests a moderate but tangible risk that requires timely attention to prevent escalation.

1. Apply vendor patches immediately once released to address the vulnerability in the affected version 1.0 of the SourceCodester Hotel and Lodge Management System. 2. Implement strict input validation and sanitization on all user-supplied data, especially the 'Contact' parameter, using allowlists and rejecting suspicious input patterns. 3. Refactor database queries to use parameterized statements or prepared queries to prevent SQL injection. 4. Restrict database user privileges to the minimum necessary to limit the impact of potential injection attacks. 5. Monitor database logs and application logs for unusual query patterns or repeated failed attempts that may indicate exploitation attempts. 6. Conduct regular security assessments and code reviews focusing on input handling and database interactions. 7. Segment the network to isolate critical systems and limit exposure of the management system to untrusted networks. 8. Educate staff about the risks of SQL injection and the importance of reporting suspicious system behavior. 9. Consider deploying Web Application Firewalls (WAFs) with rules tuned to detect and block SQL injection attempts targeting the application.