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some content characters change when request is sent to intruder

saeed | Last updated: Nov 10, 2019 10:44AM UTC

hi, I attached a docx file with simple content (like some lines) in it, then sent the request to intruder and one to repeater from intercept (proxy) part for further investigating of request, it seems some character in the docx part is changed when it is sent to intruder. repeater works fine, but intruder doesn't ; i sent the both repeater and intruder request to comparer, and compare both requests, it's obvious that some part of docx file is changed when it sends to intruder comparing with main request. the content-length is changed too. by the way, the site uses multipart form for uploading docx file.

Michelle, PortSwigger Agent | Last updated: Nov 11, 2019 10:49AM UTC

Would you be able to share some more detail to help us understand the issue better? If you can, it would be really useful if you could send some screenshots of the request in Repeater and Intruder to support@portswigger.net. Also, a bit more information on the content of the docx file might help us work out what is happening too. Thanks

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