CVE-2025-4864 is a critical SQL Injection vulnerability identified in version 1.0 of the itsourcecode Restaurant Management System, specifically within the /admin/finished.php file. The vulnerability arises from improper sanitization or validation of the 'ID' parameter, which an attacker can manipulate to inject malicious SQL commands. This flaw allows remote attackers to execute arbitrary SQL queries on the backend database without requiring authentication or user interaction. The vulnerability has a CVSS 4.0 base score of 6.9, indicating a medium severity level, with attack vector being network-based (remote), low attack complexity, and no privileges or user interaction needed. The impact on confidentiality, integrity, and availability is low to limited, suggesting that while exploitation is feasible remotely and easily, the scope of damage may be constrained by the application's design or database permissions. No public exploits are currently known in the wild, but the vulnerability details have been disclosed, increasing the risk of exploitation. The lack of available patches or mitigations from the vendor further elevates the urgency for affected organizations to implement protective measures. SQL Injection vulnerabilities can lead to unauthorized data access, data modification, or denial of service, depending on the database and application context. Given the affected component is an administrative interface, successful exploitation could compromise sensitive operational data or disrupt restaurant management functions.

For European organizations using the itsourcecode Restaurant Management System 1.0, this vulnerability poses a tangible risk to the confidentiality and integrity of their operational data, including customer information, order details, and financial transactions. Exploitation could lead to unauthorized data disclosure or manipulation, potentially resulting in financial loss, reputational damage, and regulatory non-compliance, especially under GDPR mandates protecting personal data. The remote and unauthenticated nature of the attack vector increases the threat surface, allowing attackers to target exposed administrative endpoints from anywhere. Disruption of restaurant management operations could also impact service availability, affecting business continuity. Given the hospitality sector's importance in Europe and the increasing reliance on digital management systems, this vulnerability could have significant operational and compliance repercussions if exploited.

1. Immediate isolation or restriction of access to the /admin/finished.php endpoint through network segmentation or firewall rules to limit exposure to trusted IP addresses only. 2. Implement Web Application Firewall (WAF) rules specifically designed to detect and block SQL Injection attempts targeting the 'ID' parameter. 3. Conduct a thorough code review and apply input validation and parameterized queries or prepared statements to sanitize all user inputs, especially the 'ID' parameter in the affected file. 4. If vendor patches become available, prioritize prompt application of updates. 5. Monitor logs for unusual database query patterns or repeated access attempts to the vulnerable endpoint. 6. Consider deploying database activity monitoring solutions to detect anomalous queries indicative of injection attacks. 7. Educate administrative users on the risks and encourage the use of strong authentication methods and secure access channels such as VPNs. 8. As a longer-term measure, evaluate upgrading to newer, supported versions of the software or alternative solutions with better security postures.