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Application response 500 when burp collaborator is active

Beniamino | Last updated: Feb 04, 2022 09:27AM UTC

Hi, i'm having troubles testing a web application. If i use burp collaborator (default or private) the application respond with a 500 error. As soon i set "Don't use Burp Collaborator" in "Project Options -> Misc" the proxy works again. I tested it with Embedded browser and external browser too. Burpsuite version : Professional v2021.12.1 thanks for your support

Liam, PortSwigger Agent | Last updated: Feb 07, 2022 07:57AM UTC

Is it possible that the application is blocking the collaborator server? Is the application publicly accessible?

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