Defending OAuth: Common attacks and how to prevent them

OAuth vulnerabilities exist due to common attacks such as token theft, code injection, mix-up attacks, and more. To prevent these attacks, it's essential to validate redirect URIs, use secure storage for refresh tokens, implement strong client authentication and user authentication, and follow best practices like using PKCE, avoiding implicit grant and ROPC flows, and educating developers on OAuth security. Additionally, using secure libraries and frameworks can help ensure the protocol is implemented securely.

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