SQL Injection Advanced Techniques

SQL Injection Overview

SQL injection is one of the most common web security vulnerabilities.

WAF Bypass Techniques

2.1 Encoding Bypass

Use URL encoding, double encoding, and Unicode encoding to bypass WAF detection.

Privilege Escalation

After obtaining database permissions through SQL injection, further privilege escalation is possible.

Defense Recommendations

• Use parameterized queries
• Follow the principle of least privilege
• Implement input validation and filtering