GraphQL Injection Scanner
Tests for injection vulnerabilities in GraphQL resolvers.
What is GraphQL Injection?
GraphQL Injection occurs when user input from GraphQL queries or mutations is passed unsafely to backend systems—SQL databases, NoSQL stores, command execution, or other APIs. While GraphQL itself handles input parsing, resolvers often concatenate input into other query languages without sanitization.
Why is This Important?
GraphQL doesn't prevent injection—it just moves it. If a resolver builds SQL queries by concatenating GraphQL arguments, SQL injection is possible. The same applies to NoSQL, LDAP, OS commands, and other backends. Developers may falsely assume GraphQL's typed input provides safety.
How It Works
1. Attack Surface Mapping
Identifies complex attack vectors including race conditions, desync points, and logic flaws in your application.
2. Advanced Exploitation
Executes sophisticated attack techniques that bypass traditional security controls and detection mechanisms.
3. Impact Assessment
Demonstrates real-world impact with detailed exploitation chains and business risk analysis.
Key Capabilities
Expert-level security testing for sophisticated vulnerabilities that evade traditional scanning tools.
- Race condition and timing attack detection
- Request smuggling and desync analysis
- Business logic flaw identification
- Chained exploit development
- Protocol-level vulnerability testing
Frequently Asked Questions
How does injection work through GraphQL?
A mutation like createUser(name: "Robert'); DROP TABLE users;--") passes the injection payload to the resolver. If the resolver does: db.query("INSERT INTO users (name) VALUES('" + name + "')"), classic SQL injection occurs. GraphQL typing doesn't prevent this.
What backends are vulnerable through GraphQL?
Any backend the resolver interacts with: SQL databases, MongoDB/NoSQL, Elasticsearch, LDAP directories, shell commands, external APIs (if injecting into URL/params), and even other GraphQL services. The attack surface is determined by resolver implementation.
Does GraphQL's type system prevent injection?
No. GraphQL validates types but doesn't sanitize content. A String type accepts any string including SQL/NoSQL injection payloads. An Int type prevents SQL in that field but doesn't prevent injection in String fields or other attack vectors.
How do I prevent GraphQL injection?
Same as any injection: use parameterized queries/prepared statements, ORMs with proper escaping, input validation beyond GraphQL types, allowlist input patterns for sensitive fields, security review all resolvers, and test with injection payloads through GraphQL inputs.
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