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Burp File Size - Extension data vs Persistence

Tyler | Last updated: Jun 16, 2023 09:07AM UTC

Hi, Im having some issues with Burp file sizes due to extensions, but I'm confused as to the cause. I have an extension I created that is causing Burp files to balloon to 20x their normal size. As this extension makes use of Persistence, I would have thought this would be the issue. If you save a copy of the Burp file without extension data, it goes back to a normal size. However, loading the copy still keeps all my custom extension's data stored in Persistence. From this, I gather that the Burp file stores persistence data somewhere other than extension data, is this correct? If this is the case, what type of things might cause extension data to be gigabytes for a 100 megabyte burp file and how could I clear some of this data? I appreciate this is difficult without seeing the extension, but any trends you might have seen in the past regarding larger burp files might be useful. Thank you

Hannah, PortSwigger Agent | Last updated: Jun 20, 2023 08:58AM UTC

Hi We're looking into this in more detail. In the meantime, could you tell us if you are deleting any data from the project file?

gary.reilly | Last updated: Jun 23, 2023 12:15PM UTC