Critical Vulnerability Information 1. Vulnerability Type SQL Injection: Attackers can bypass authentication and access sensitive data by injecting malicious SQL code into URL parameters. 2. Vulnerability Description Problematic Code: Root Cause: The user-supplied is directly concatenated into the SQL query string without any validation or escaping, leading to SQL injection risk. 3. Impact Scope Affected Versions: v1.0.0 - v1.2.3 Impacted Function: User information query functionality 4. Exploitation Method Example Request: Result: Returns detailed information for all users, including sensitive data such as passwords. 5. Remediation Recommendations Use Parameterized Queries: 6. Additional Notes Input Validation: Strictly validate and escape all external inputs. Principle of Least Privilege: Use database connections with the minimum required privileges. ``` These key details can help development teams quickly identify the issue and implement appropriate fixes.