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oauth2/v2.0/authorize

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What is this endpoint?

oauth2/v2.0/authorize

Microsoft Entra ID Authorization Endpoint

What an attacker could do

Misconfiguration here (overly permissive redirect URIs, implicit flow, or open client registration) enables authorization-code interception and token theft, leading to account takeover in Entra ID-protected apps.

How to defend it

Enforce exact redirect-URI matching, use PKCE with the authorization-code flow, disable implicit/hybrid grants, and restrict app registration to administrators.

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Want to dive deeper into this topic? Check out the official documentation.

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