CVE-2025-8470 is a critical SQL Injection vulnerability identified in version 1.0 of the SourceCodester Online Hotel Reservation System, specifically within the /admin/deleteroom.php file. The vulnerability arises from improper sanitization or validation of the 'ID' parameter, which is used in SQL queries. An attacker can remotely manipulate this parameter to inject malicious SQL code, potentially allowing unauthorized access to or modification of the underlying database. This could lead to unauthorized data disclosure, data corruption, or even full system compromise depending on the database privileges. The vulnerability does not require authentication or user interaction, making it easier to exploit remotely. Although the CVSS 4.0 score is 6.9 (medium severity), the nature of SQL injection vulnerabilities typically poses significant risks, especially when exploited in administrative modules. No official patch has been released yet, and while no known exploits are currently observed in the wild, the public disclosure of the exploit code increases the risk of active exploitation. The vulnerability affects only version 1.0 of the product, which is a niche hotel reservation system likely used by small to medium hospitality businesses.

For European organizations, particularly those in the hospitality sector using the SourceCodester Online Hotel Reservation System 1.0, this vulnerability could lead to severe operational and reputational damage. Exploitation could result in unauthorized access to sensitive customer data such as personal identification, booking details, and payment information, violating GDPR regulations and potentially leading to heavy fines. Additionally, attackers could manipulate or delete reservation data, causing service disruptions and financial losses. The administrative nature of the vulnerable endpoint increases the risk of full database compromise, which could cascade into broader network breaches if the database credentials are reused or if the system is interconnected with other internal services. Given the remote and unauthenticated exploit vector, attackers can launch automated attacks at scale, increasing the threat to European hospitality businesses that have not updated or patched their systems.

European organizations should immediately audit their use of the SourceCodester Online Hotel Reservation System to identify any deployments of version 1.0. Since no official patch is currently available, organizations should implement the following mitigations: 1) Apply Web Application Firewall (WAF) rules specifically targeting SQL injection patterns on the /admin/deleteroom.php endpoint, blocking suspicious inputs in the 'ID' parameter. 2) Restrict access to the administrative interface by IP whitelisting or VPN-only access to reduce exposure. 3) Conduct code reviews and implement parameterized queries or prepared statements to sanitize inputs if the source code is accessible and modifiable. 4) Monitor logs for unusual database query patterns or repeated failed attempts targeting the vulnerable parameter. 5) Plan for an upgrade or migration to a more secure and actively maintained hotel reservation system. 6) Ensure regular backups of the database are maintained and tested for restoration to mitigate data loss from potential exploitation.