SourceCodester Pharmacy Sales and Inventory System SQL Injection Vulnerability

A SQL injection vulnerability has been identified in SourceCodester Pharmacy Sales and Inventory System version 1.0. The issue arises in the file '/ajax.php?action=delete_product', where insufficient validation of the 'id' parameter allows attackers to inject malicious SQL queries. This vulnerability can be exploited remotely, without any authentication, potentially leading to unauthorized database access, data manipulation, and leakage of sensitive information.

Impact

Exploitation of this vulnerability allows for SQL injection, which could lead to unauthorized database access, data modification or deletion, access to sensitive information, and disruption of services.

Reproduction

To reproduce this vulnerability, send a POST request to '/ajax.php?action=delete_product' with a crafted 'id' parameter that includes a malicious SQL payload. The injection can be verified by observing the application's response, which may indicate successful exploitation, such as database information being returned.

Remediation

It is recommended to use prepared statements and parameter binding to prevent SQL injection, validate and filter user input, minimize database user permissions, and conduct regular security audits.