From this webpage screenshot, the following key information about the vulnerability can be obtained: 1. Vulnerability Type: SQL Injection vulnerability. 2. Affected System: Free Download Online Shopping System (success.php). 3. Vulnerability Description: - Location: The file of the online shopping website. - Vulnerable Code: - Cause: The variable is directly inserted into the SQL query without any escaping or parameterized handling. - Injection Parameter: . 4. Exploitation: - Exploit Code: - Exploitation Result: - After sending the request, the browser displays an error message: - This error message indicates that the attacker successfully exploited the SQL injection vulnerability and attempted to retrieve database information. This information shows that the vulnerability allows attackers to inject malicious SQL code via a specially crafted parameter, thereby gaining access to database information.