CVE-2025-11471 identifies a SQL injection vulnerability in the SourceCodester Hotel and Lodge Management System version 1.0. The vulnerability exists in the /edit_customer.php script, where the ID parameter is improperly sanitized, allowing attackers to inject malicious SQL code. This injection flaw enables remote attackers to manipulate backend database queries without requiring authentication or user interaction, potentially exposing or altering sensitive customer data stored within the system. The vulnerability is exploitable over the network, increasing its risk profile. The CVSS 4.0 vector indicates no privileges or user interaction are needed, with low complexity and low impact on confidentiality, integrity, and availability individually, but combined they elevate the overall risk. Although no known exploits are currently active in the wild, the public availability of exploit code increases the likelihood of exploitation attempts. The vulnerability affects only version 1.0 of the product, and no official patches have been linked yet, suggesting that users must rely on manual mitigations or vendor updates. This vulnerability is particularly critical for hospitality organizations relying on this system to manage customer data, reservations, and billing, as unauthorized access or data manipulation could result in financial loss, reputational damage, and regulatory non-compliance.

For European organizations, this vulnerability poses a significant risk to the confidentiality and integrity of customer data managed by the affected system. Exploitation could lead to unauthorized disclosure of personal and payment information, violating GDPR and other data protection regulations, potentially resulting in heavy fines and legal consequences. Integrity breaches could allow attackers to alter booking records or financial transactions, disrupting business operations and causing financial losses. Availability impact is less severe but could occur if attackers execute destructive SQL commands. The hospitality sector in Europe, which is a major economic contributor in countries like Spain, Italy, France, and Germany, could face operational disruptions and reputational damage. Additionally, smaller hotels and lodges using this affordable or open-source system may lack robust cybersecurity defenses, increasing their vulnerability. The public availability of exploit code raises the urgency for European organizations to act swiftly to prevent exploitation, especially as attackers often target hospitality businesses due to their valuable customer data and frequent online transactions.

1. Immediately restrict access to the /edit_customer.php endpoint through network-level controls such as firewalls or VPNs to limit exposure. 2. Implement strict input validation and parameterized queries or prepared statements in the application code to prevent SQL injection. 3. Monitor web server and database logs for unusual or suspicious activity targeting the ID parameter. 4. If possible, upgrade to a newer, patched version of the software once available from the vendor. 5. Employ Web Application Firewalls (WAFs) with rules specifically designed to detect and block SQL injection attempts targeting this vulnerability. 6. Conduct a thorough security audit of the entire application to identify and remediate other potential injection points. 7. Educate IT and security teams in hospitality organizations about this vulnerability and encourage prompt incident response readiness. 8. Regularly back up databases and ensure backups are secure and tested for restoration to mitigate potential data loss. 9. Consider isolating the management system within a segmented network zone to reduce lateral movement in case of compromise. 10. Engage with the vendor or community for updates and patches, and apply them as soon as they become available.