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Test form fields and API inputs for proper validation and sanitization.
Overview
Improper input validation is the root cause of most injection vulnerabilities. Our scanner tests all input vectors — forms, URL parameters, headers, and JSON bodies — for proper validation, length limits, type checking, and sanitization.
What this scanner does
Submits various malformed inputs to forms and API endpoints including oversized strings, special characters, null bytes, Unicode edge cases, and type mismatches. Checks whether the application properly validates, sanitizes, and rejects invalid input.
Why it matters
Every injection vulnerability — SQL injection, XSS, command injection, path traversal — stems from insufficient input validation. Proper validation at the application boundary is the most effective defense against the entire class of injection attacks.
Common findings
OWASP Top 10 coverage
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