Cognito integrated UI - Content injection with /login endpoint

1

The /login endpoint could be used to produce a UI sign-in webpage with custom error messages. To do this you should simply add the loginErrorMessage variable in your GET request:

&loginErrorMessage=Account%20Blocked%0APlease%20send%20your%20Email%20and%20Password%20to%20xyz@abc.com%20to%20unblock%20your%20account.

(Note that this variable is not even reported in your official documentation )

Thisbehaviour could be exploited by an attacker to create URLs for phishing purposes.

Is there a way to set a static message? Or to disable the login error message?

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posta 2 anni fa138 visualizzazioni
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