BeginnerWeb Security
Understanding SQL Injection
See how unparameterized queries break trust boundaries, then rebuild the endpoint with prepared statements.
Objectives
- Identify where user input reaches a query
- Explain why concatenation breaks the parser boundary
- Refactor to parameterized statements
- Add validation and least-privilege database roles
This lab runs in an isolated sandbox. Only use these techniques for authorized educational testing on systems you own or are explicitly permitted to test.