Critical Vulnerability Information Affected Product Name: Online Discussion Forum Project Version: V1.0 Link: Vendor Homepage Software Link: Software Link Vulnerability Details Type: SQL Injection Affected File: /members/compose_msg.php Root Cause: In the file, attackers can inject malicious code via the parameter, which is directly used in SQL queries without proper sanitization or validation. Impact: Attackers can exploit this vulnerability to gain unauthorized database access, leak sensitive data, tamper with data, gain system control, and disrupt services, posing a severe threat to system security and business continuity. Vulnerability Description Issue: During a security review of the "Online Discussion Forum Project", a critical SQL injection vulnerability was discovered. This vulnerability stems from insufficient user input validation for the parameter, allowing attackers to inject malicious SQL queries. No Login Required: Exploiting this vulnerability does not require login or authorization. Vulnerability Details and POC Parameter: Type: Time-based Blind SQL Injection Example: MySQL AND-based time-blind injection (using SLEEP) Payload: Recommended Remediation 1. Use Prepared Statements and Parameter Binding: To prevent SQL injection. 2. Input Validation and Filtering: Strictly validate and filter user input data. 3. Principle of Least Privilege: Ensure database connection accounts have the minimum necessary privileges. 4. Regular Security Audits: Conduct regular code and system security audits.