CVE-2025-11359 identifies a SQL injection vulnerability in the Simple Banking System 1.0 developed by code-projects. The vulnerability exists in an unspecified function within the /transfermoney.php file, where the ID parameter is improperly sanitized, allowing attackers to inject malicious SQL commands. This flaw enables remote exploitation without requiring authentication or user interaction, making it accessible to a wide range of attackers. The vulnerability can lead to unauthorized data access, modification, or deletion within the banking system's database, potentially compromising sensitive financial information and transactional integrity. The CVSS 4.0 vector indicates network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:L - low privileges), no user interaction (UI:N), and low impact on confidentiality, integrity, and availability (VC:L, VI:L, VA:L). Despite the moderate CVSS score of 5.3, the presence of public exploit code increases the risk of exploitation. No official patches have been released, and the vulnerability was publicly disclosed shortly after discovery. The lack of secure coding practices, such as parameterized queries or prepared statements, is the root cause. This vulnerability is critical for any organization using this software, especially in financial contexts where data integrity and confidentiality are paramount.

For European organizations, the impact of CVE-2025-11359 can be significant, particularly for banks or financial institutions using the Simple Banking System 1.0. Exploitation could lead to unauthorized access to customer financial data, manipulation of transaction records, or disruption of banking operations. This can result in financial losses, regulatory penalties under GDPR due to data breaches, and reputational damage. The vulnerability's remote exploitability without user interaction increases the risk of automated attacks and widespread compromise. Smaller banks or credit unions relying on this software may lack the resources for rapid mitigation, increasing their exposure. Additionally, attackers could leverage this vulnerability as a foothold for further network intrusion or lateral movement within financial networks. The medium severity rating suggests moderate but tangible risk, emphasizing the need for prompt remediation to avoid escalation.

To mitigate CVE-2025-11359, organizations should immediately audit and sanitize all inputs to the /transfermoney.php endpoint, specifically the ID parameter. Implement parameterized queries or prepared statements to prevent SQL injection. Restrict access to the vulnerable endpoint using network-level controls such as firewalls or web application firewalls (WAFs) configured to detect and block SQL injection patterns. Monitor database logs and application logs for unusual query patterns indicative of injection attempts. If possible, isolate the affected system from critical internal networks until a secure patch or update is available. Conduct a thorough code review of the entire application to identify and remediate similar injection flaws. Educate developers on secure coding practices and enforce input validation standards. Finally, maintain regular backups of critical data to enable recovery in case of data corruption or loss due to exploitation.