Critical Vulnerability Information 1. SQL Injection Point Code Location: SQL injection vulnerability exists in the method. Specific Code: - Parameters and are directly concatenated into the SQL statement without any filtering or escaping. 2. Vulnerability Call Path Service Layer: calls . Controller Layer: method calls . 3. HTTP Request Example Request Method: POST URL: Request Headers: - Host: localhost:8080 - User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.0 Safari/537.36 Request Body: - Content-Type: application/x-www-form-urlencoded - Contains parameters and 4. Exploitation Example Payload: - Using the above payload can bypass normal query conditions, leading to an SQL injection attack. 5. Security Recommendations Validate and escape input parameters strictly to avoid direct SQL string concatenation. Use prepared statements (PreparedStatement) to prevent SQL injection. --- These findings indicate a severe SQL injection vulnerability in the system. Attackers can exploit this by crafting malicious HTTP request parameters to execute arbitrary SQL commands, posing a serious threat to the database.