CVE-2025-9702 is a SQL Injection vulnerability identified in version 1.0 of the SourceCodester Simple Cafe Billing System. The vulnerability exists in the /sales_report.php file, specifically through the manipulation of the 'month' parameter. This parameter is not properly sanitized or validated, allowing an attacker to inject malicious SQL code. The injection flaw can be exploited remotely without any authentication or user interaction, making it accessible to unauthenticated attackers over the network. The vulnerability could allow attackers to execute arbitrary SQL commands on the backend database, potentially leading to unauthorized data disclosure, data modification, or deletion. The CVSS 4.0 base score is 6.9 (medium severity), reflecting the network attack vector, low attack complexity, no privileges required, and no user interaction needed. The impact on confidentiality, integrity, and availability is rated as low individually, but combined they represent a moderate risk. No official patches or fixes have been published yet, and while no known exploits in the wild have been reported, public exploit code is available, increasing the risk of exploitation. The vulnerability affects only version 1.0 of the Simple Cafe Billing System, a niche billing software likely used by small to medium-sized cafes or similar businesses for sales reporting and billing management. The lack of authentication requirement and remote exploitability make this a significant threat to any deployment of this software that remains unpatched or unmitigated.

For European organizations using the Simple Cafe Billing System 1.0, this vulnerability poses a risk of unauthorized access to sensitive sales and financial data. Attackers could extract customer information, manipulate billing records, or disrupt sales reporting, potentially causing financial losses and reputational damage. Small and medium enterprises (SMEs) in the hospitality sector, particularly cafes and small restaurants, are most at risk. The breach of financial data could also lead to regulatory non-compliance under GDPR, resulting in fines and legal consequences. Since the exploit requires no authentication and can be performed remotely, attackers could automate attacks to compromise multiple vulnerable systems across Europe. The medium severity rating suggests that while the vulnerability is serious, it may not lead to full system compromise or widespread disruption without additional chained exploits. However, the availability of public exploit code lowers the barrier for attackers, increasing the likelihood of opportunistic attacks. Organizations relying on this software should consider the potential for data leakage and operational disruption, especially if they handle sensitive customer payment information or personally identifiable information (PII).

Given the absence of an official patch, European organizations should implement immediate compensating controls. First, restrict network access to the /sales_report.php endpoint by using web application firewalls (WAFs) configured to detect and block SQL injection patterns, particularly targeting the 'month' parameter. Input validation and sanitization should be enforced at the application level; if source code access is available, developers should implement parameterized queries or prepared statements to eliminate injection vectors. Organizations should also conduct thorough code reviews and penetration testing to identify similar vulnerabilities in other parts of the application. Monitoring and logging of database queries and web server access should be enhanced to detect suspicious activity indicative of exploitation attempts. If feasible, isolate the billing system on a segmented network with limited external exposure. Finally, organizations should plan to upgrade or replace the vulnerable software with a secure alternative or a patched version once available, and educate staff on the risks of SQL injection attacks.