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 handling of the 'uemail' parameter, which is susceptible to SQL injection attacks. Attackers can remotely send crafted requests to manipulate SQL queries executed by the backend database, potentially extracting sensitive information, modifying data, or disrupting database availability. The vulnerability does not require authentication or user interaction, making it easier to exploit remotely. The CVSS 4.0 base score is 5.3, reflecting medium severity due to limited scope of impact and partial compromise of confidentiality, integrity, and availability. No patches have been officially released yet, and no known active exploitation has been reported, but public exploit code availability increases risk. The vulnerability affects only version 1.0 of the product, which is a simple inventory management system commonly used by small to medium enterprises for tracking assets and stock. The lack of secure coding practices around input validation and use of parameterized queries is the root cause. Exploitation could lead to unauthorized data disclosure, data tampering, or denial of service conditions. Organizations relying on this system should urgently assess exposure and implement mitigations.

For European organizations, this vulnerability poses a risk to the confidentiality and integrity of inventory and user data managed by the Simple Inventory System. Unauthorized access to inventory records could disrupt supply chain operations, cause financial losses, or lead to regulatory non-compliance, especially under GDPR where personal data may be involved. The availability impact is limited but possible if attackers manipulate database queries to cause errors or crashes. Small and medium enterprises using this system in sectors like manufacturing, retail, and logistics are particularly vulnerable. The remote, no-authentication nature of the exploit increases the attack surface, potentially allowing widespread scanning and exploitation attempts. Data breaches resulting from this vulnerability could damage organizational reputation and lead to legal consequences. Given the public availability of exploit code, the likelihood of attacks targeting European entities is elevated unless mitigations are applied promptly.

1. Immediately review and sanitize all inputs, especially the 'uemail' parameter, using strict whitelist validation to allow only valid email formats. 2. Refactor the application code to use parameterized queries or prepared statements to prevent SQL injection. 3. Restrict database user privileges to the minimum necessary, avoiding use of high-privilege accounts for application connections. 4. Monitor web server and database logs for suspicious queries or repeated failed attempts targeting the 'uemail' parameter. 5. Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns specific to this vulnerability. 6. If patching is not yet available, consider isolating the affected system from external networks or limiting access to trusted IP addresses. 7. Conduct a thorough security audit of the entire application to identify and remediate other potential injection points. 8. Educate developers on secure coding practices to prevent similar vulnerabilities in future releases.