Attack Chain

1. The attacker identifies a vulnerable instance of SourceCodester Pharmacy Sales and Inventory System 1.0.
2. The attacker crafts a malicious HTTP request targeting the /ajax.php?action=delete_product endpoint.
3. The attacker injects SQL code into the ID parameter of the request.
4. The server-side application fails to properly sanitize the input, passing the malicious SQL code to the database.
5. The database executes the injected SQL code, potentially allowing the attacker to bypass authentication, access sensitive data, modify database records, or execute system commands.
6. The attacker retrieves sensitive data, such as patient information, prescription details, or financial records.
7. The attacker may escalate privileges within the application and the underlying system.
8. The attacker can then exfiltrate the compromised data or maintain persistent access to the system for future attacks.

Impact

Successful exploitation of this SQL injection vulnerability can lead to a complete compromise of the Pharmacy Sales and Inventory System. This can result in the theft of sensitive patient data, financial records, and other confidential information. The vulnerability allows attackers to potentially modify or delete critical data, leading to disruption of pharmacy operations, financial losses, and regulatory penalties. As the exploit is publicly available, the likelihood of widespread exploitation is high, impacting any organization using the vulnerable version of the software.

Recommendation

• Apply the Sigma rule Detecting SQL Injection Attempts via URI to identify potential exploitation attempts against the /ajax.php?action=delete_product endpoint.
• Inspect web server logs for requests to /ajax.php?action=delete_product containing suspicious characters or SQL keywords in the ID parameter, as detected by the Detecting SQL Injection in Pharmacy System Sigma rule.
• Implement input validation and sanitization measures to prevent SQL injection vulnerabilities in the SourceCodester Pharmacy Sales and Inventory System, mitigating the underlying issue.
• Restrict access to the database server and sensitive data to only authorized personnel, reducing the potential impact of a successful SQL injection attack.
• Monitor database logs for suspicious activity, such as unauthorized data access or modification, which may indicate successful exploitation of CVE-2026-7199.