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Facebook Access token Bug | Adding Ad Accounts in Facebook Business

Facebook Business lets you add Ad Account in you account.

This bugs lets a facebook ad Account to be added into the Facebook business with public permission for Access Token.
To add the Ad Account to your Facbook Business then you need to have permissions of Business and Ad Account for the access token.
Once you click on "Confim" button on the dialog window after addding the ID of the Ad Account to add you get the Following HTTP Request intercepted.



Then there was a flaw. I tested for the with access token with no permissions or also public profile permissions




and found that it actually works and gets the ad account added into the Facebook Business.


Bounty $500

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