CVE-2025-14834 identifies a SQL injection vulnerability in the Simple Stock System version 1.0 developed by code-projects. The vulnerability is located in the /checkuser.php file, specifically in the handling of the Username parameter. An attacker can remotely manipulate this parameter to inject malicious SQL code, potentially bypassing authentication or extracting/modifying sensitive data stored in the backend database. The vulnerability does not require authentication or user interaction, increasing its risk profile. The CVSS 4.0 score of 5.3 reflects medium severity, considering the attack vector is network-based with low attack complexity but requiring low privileges. The vulnerability affects confidentiality, integrity, and availability (CIA triad) due to the possibility of unauthorized data disclosure, data tampering, or denial of service through database corruption. No official patches have been released yet, and while exploit code is publicly available, no active exploitation in the wild has been confirmed. The Simple Stock System is typically used by small and medium enterprises for inventory management, making it a valuable target for attackers seeking to disrupt business operations or steal commercial data. The vulnerability highlights the importance of secure coding practices such as input sanitization and use of parameterized queries to prevent SQL injection attacks.

For European organizations, especially SMEs relying on Simple Stock System 1.0 for inventory and stock management, this vulnerability poses a significant risk. Exploitation could lead to unauthorized access to sensitive business data, including user credentials and stock information, potentially resulting in data breaches and loss of intellectual property. Integrity of stock records could be compromised, leading to financial discrepancies and operational disruptions. Availability could also be affected if attackers manipulate or corrupt the database, causing downtime. Given the remote exploitation capability without authentication, attackers can launch attacks from anywhere, increasing the threat landscape. This could also impact supply chain operations and customer trust. Regulatory compliance risks arise under GDPR if personal data is exposed. The medium severity rating suggests a moderate but tangible risk that requires timely mitigation to prevent escalation or chaining with other vulnerabilities.

1. Immediately implement input validation and sanitization on the Username parameter in /checkuser.php to prevent injection of malicious SQL code. 2. Refactor the code to use parameterized queries or prepared statements instead of dynamic SQL construction. 3. Restrict database user permissions to the minimum necessary, avoiding use of high-privilege accounts for application access. 4. Monitor logs for unusual database queries or repeated failed login attempts that may indicate exploitation attempts. 5. Conduct a thorough code audit of the entire Simple Stock System application to identify and remediate other potential injection points. 6. If possible, upgrade to a newer, patched version of the software once available or consider alternative inventory management solutions with better security posture. 7. Employ Web Application Firewalls (WAFs) with SQL injection detection rules as a temporary protective measure. 8. Educate IT staff and users about the risks and signs of exploitation to enable rapid incident response. 9. Regularly back up database contents to enable recovery in case of data corruption or loss.