API Security and Penetration Testing Quiz
Challenge your understanding of common API vulnerabilities, secure coding practices, and penetration testing techniques based on real-world scenarios.
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Quiz Questions & Answers
Review every prompt, the correct responses, and helpful context to prep for your own run-through.
Question 1: In an API endpoint for resetting passwords that accepts email and new password in the payload, what primary security measure prevents attackers from targeting other users' accounts?
Input Validation
Rate Limiting
Email Verification and Token Validation
Logging and Monitoring
Question 2: When testing a payments API that handles credit card details without encryption, what vulnerability exposes sensitive financial data to interception?
XSS
Sensitive Data Exposure
CSRF
IDOR
Question 3: If modifying a user ID parameter in an API request for account details allows access to another user's information, what vulnerability is this an example of?
SQL Injection
SSRF
Insecure Direct Object References (IDOR)
Broken Authentication
Question 4: Uploading a malicious PHP file to an API endpoint that executes it on the server indicates what type of severe vulnerability?
File Inclusion
Remote Code Execution (RCE)
Directory Traversal
Command Injection
Question 5: Accessing an admin-only API endpoint with a regular user token without rejection tests for what authorization flaw?
Broken Access Control
Privilege Escalation
CSRF
XSS
Question 6: A login API issuing JWT tokens without expiration dates poses what major replay risk to attackers who intercept them?
Persistent XSS
Token Replay Attacks
Buffer Overflow
SQL Injection
Question 7: In a profile update API allowing userId in the payload without ownership verification, what vulnerability enables mass account tampering?
CSRF
Insecure Direct Object References (IDOR)
SSRF
XXE Injection
Question 8: For a user deletion API request, what essential checks prevent unauthorized removals of accounts?
Rate Limiting
CSRF Token
Authentication and Authorization Checks
Input Sanitization