What Accesslevel do Websites have on my PC when uploading files?


  1. Posts : 14
    Windows 10
       #1

    What Accesslevel do Websites have on my PC when uploading files?


    For example when i created this thread i uploaded an attachment, in order to do that i had to grant firefox / the tenforums website access to my pc.

    As you can see on the screenshot firefox has opened my windows explorer, i could basically browse though my whole os and even navigate to system32 and upload files from there, obviously i could upload literally anything from my os and any connected drive/storage. So the question is does firefox or the website being viewed have access to my pc? Can it scan or look for files? Could it do harmful things? Before you reply, how do you have the knownledge to anser this, how did you find out the anser to this?

    I see it this way, firefox has access to my whole system as i can like i said upload literally anything, meaning there is a chance the website being viewed / the website having a connection to my pc/firefox browser could also have access to any files on my device.

    If been asking myself this question for a while, what can websites see on my os / about my os if i upload files? Clearly the browser has access to the system so maybe the websites do aswell, and if not maybe the websites knows an exploit / backdoor to do so.
    Attached Thumbnails Attached Thumbnails What Accesslevel do Websites have on my PC when uploading files?-capture.png  
      My Computer


  2. Posts : 497
    Windows 10 Home x64
       #2

    from how i read it you have to direct TF to the file you want to upload so you have to navigate through your PC to find and upload your file, nothing nefarious going on here its just how it works.

    Rob
      My Computers


  3. Posts : 4,752
    Windows 11 Pro 64 Bit 22H2
       #3

    You are the one browsing your computer to choose which file to upload to a web site. You are in control, Firefox or TSF does not have permission to search for any files and choose to upload them without your direction and manual browsing.
      My Computer


  4. Posts : 66
    Win10 Home 64-bit, MX-Linux
       #4

    Without additional monitoring and control put in place, any program started by a user can do anything that user can do, has access to everything that user has access to, etc. Websites only have access to the extent that the browser in use allows. Browsers usually have settings that can affect what website code can do and access, and those settings have changed markedly over the years. Windows has quite a few user security settings that can limit the damage potential of malware on their computer. Connecting to the internet is inherently risky.
      My Computer


 

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