Cognito Scanner is a Python script that implements security testing attacks against AWS Cognito authentication services. The tool focuses on identifying vulnerabilities in Cognito implementations through three primary attack vectors. The script performs unwanted account creation attacks to test whether unauthorized users can create accounts in protected Cognito user pools. It implements Account Oracle functionality to enumerate valid usernames and determine account existence without proper authentication. The tool also includes Identity pool escalation capabilities to test for privilege escalation vulnerabilities in Cognito identity pools. This allows security researchers to identify misconfigurations that could lead to unauthorized access to AWS resources. The scanner requires only the Client ID from the target Cognito instance to perform its security assessments. It provides a straightforward approach for penetration testers and security professionals to evaluate the security posture of AWS Cognito implementations.