Code-Projects Online Shoe Store SQL Injection Vulnerability in Cart.php

A critical SQL injection vulnerability has been identified in the 'Online Shoe Store' project by Code-Projects, specifically in version 1.0. The issue arises in the '/cart.php' file, where the 'qty[]' parameter is manipulated, leading to unauthorized database access. This vulnerability allows attackers to inject malicious SQL queries, potentially modifying or deleting data and accessing sensitive information. The flaw is due to inadequate input validation, with no authentication required for exploitation.

Impact

Exploitation of this vulnerability allows for SQL injection, where attackers can manipulate database queries. This could lead to unauthorized data access, data modification or deletion, and in some cases, executing administrative operations on the database. Such actions could disrupt the application's functionality and compromise its data integrity.

Reproduction

The vulnerability can be reproduced by sending a POST request to 'cart.php' with the 'qty[]' parameter. Injecting a crafted SQL payload, such as one that exploits boolean-based or time-based blind SQL injection techniques, can demonstrate the vulnerability. The injection bypasses any expected input validation and is executed by the application's database layer.

Remediation

To address this vulnerability, it is recommended to implement prepared statements and parameter binding to separate SQL code from user input, preventing injection attacks. Additionally, input validation and filtering should be applied to ensure data conforms to expected formats. Minimizing database user permissions and conducting regular security audits can further enhance the application's security.