CVE-2025-4882 is a critical SQL Injection vulnerability identified in version 1.0 of the itsourcecode Restaurant Management System, specifically affecting the /admin/team_update.php file. The vulnerability arises from improper sanitization or validation of the 'team' parameter, which can be manipulated by an attacker to inject malicious SQL code. This flaw allows remote attackers to execute arbitrary SQL commands on the backend database without requiring authentication or user interaction. The vulnerability's CVSS 4.0 base score is 6.9, indicating a medium severity level, with attack vector being network-based (AV:N), no privileges required (PR:N), and no user interaction needed (UI:N). The impact on confidentiality, integrity, and availability is low to medium, suggesting that while the attacker can manipulate data, the scope of damage may be limited by the system's design or database permissions. No public exploits are currently known in the wild, but the exploit details have been disclosed, increasing the risk of exploitation. The lack of available patches or updates from the vendor further exacerbates the risk. Given the nature of restaurant management systems, which typically handle sensitive customer data, order information, and possibly payment details, exploitation could lead to unauthorized data access, data corruption, or disruption of business operations.

For European organizations using the itsourcecode Restaurant Management System 1.0, this vulnerability poses a significant risk. Exploitation could lead to unauthorized access to sensitive customer and business data, including personal information and transaction records, potentially violating GDPR requirements and leading to regulatory penalties. Data integrity could be compromised, affecting order processing and inventory management, which may disrupt restaurant operations and cause financial losses. Additionally, attackers could leverage the vulnerability to pivot within the network, escalating the impact. The remote and unauthenticated nature of the attack vector increases the threat level, especially for restaurants with internet-facing administrative interfaces. The reputational damage from a data breach or service disruption could be substantial, particularly in the competitive European hospitality market.

To mitigate this vulnerability, European organizations should immediately restrict access to the /admin/team_update.php endpoint by implementing network-level controls such as IP whitelisting or VPN access for administrative functions. Input validation and parameterized queries should be enforced in the application code to prevent SQL injection; if source code modification is possible, developers must sanitize the 'team' parameter rigorously. In the absence of vendor patches, organizations should consider deploying Web Application Firewalls (WAFs) with custom rules to detect and block SQL injection attempts targeting this endpoint. Regular security audits and penetration testing should be conducted to identify similar vulnerabilities. Additionally, monitoring database logs for unusual queries and setting up alerting for suspicious activities can help detect exploitation attempts early. Finally, organizations should plan to upgrade to a patched or alternative restaurant management system version once available.