CVE-2025-11611 identifies a SQL injection vulnerability in SourceCodester Simple Inventory System version 1.0, specifically within the /user.php file. The vulnerability arises from improper sanitization of the 'uemail' parameter, which is directly used in SQL queries. This allows an unauthenticated remote attacker to inject arbitrary SQL code, potentially leading to unauthorized data retrieval, modification, or deletion within the backend database. The attack vector requires no user interaction and no privileges, making it accessible to any remote adversary with network access to the affected system. The CVSS 4.0 base score is 5.3, reflecting medium severity due to limited scope and impact on confidentiality, integrity, and availability. No patches have been officially released yet, and no exploits are confirmed in the wild, but proof-of-concept exploits are publicly available, increasing the risk of exploitation. The vulnerability affects only version 1.0 of the product, which is commonly used by small and medium enterprises for inventory management. The lack of secure coding practices such as parameterized queries or prepared statements is the root cause. Attackers exploiting this flaw could extract sensitive customer or inventory data, manipulate records, or disrupt system operations, potentially causing financial and reputational damage.

For European organizations, exploitation of CVE-2025-11611 could lead to unauthorized access to sensitive inventory and user data, undermining confidentiality and potentially violating GDPR requirements. Integrity of inventory records could be compromised, leading to inaccurate stock management, financial discrepancies, and operational inefficiencies. Availability might also be affected if attackers execute destructive SQL commands or cause database corruption. SMEs relying on SourceCodester Simple Inventory System are particularly at risk due to limited IT security resources and patch management capabilities. Data breaches could result in regulatory fines and loss of customer trust. The medium severity indicates that while the impact is significant, it may not lead to full system compromise or widespread disruption unless combined with other vulnerabilities. However, the public availability of exploit code lowers the barrier for attackers, increasing the likelihood of targeted attacks against vulnerable European businesses.

European organizations using SourceCodester Simple Inventory System 1.0 should immediately implement the following mitigations: 1) Apply any official patches or updates from the vendor as soon as they become available. 2) If patches are unavailable, implement input validation and sanitization on the 'uemail' parameter to block malicious SQL syntax. 3) Refactor the application code to use parameterized queries or prepared statements to prevent SQL injection. 4) Restrict database user privileges to the minimum necessary, avoiding use of high-privilege accounts for application connections. 5) Employ Web Application Firewalls (WAFs) with SQL injection detection rules to block exploit attempts. 6) Conduct security audits and penetration testing focused on injection flaws. 7) Monitor logs for suspicious database query patterns or repeated access attempts to /user.php. 8) Educate development teams on secure coding practices to prevent similar vulnerabilities. These steps go beyond generic advice by focusing on immediate code-level fixes, privilege restrictions, and proactive detection tailored to this specific vulnerability.