Does websites know the folder name when I upload a file from that folder?





.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box;
}







1















If I'm uploading a file to a website from a folder called "XXX", does the website know that I'm uploading that file from "XXX"?



In essence, will the website know the folder name?



Note: I use Safari on Mac.










share|improve this question

























  • I believe it is masked by the browser that is uploading the file.

    – Moab
    Jan 26 at 15:40











  • @Moab I'm using Safari by the way. Is that true for Safari?

    – delick
    Jan 26 at 15:41











  • I think it is true for all browsers.

    – Moab
    Jan 26 at 15:43











  • @Moab Ah great, thanks! May I ask how did you know this?

    – delick
    Jan 26 at 15:57











  • Because it would be a huge security hole if they did not.

    – Moab
    Jan 26 at 16:34


















1















If I'm uploading a file to a website from a folder called "XXX", does the website know that I'm uploading that file from "XXX"?



In essence, will the website know the folder name?



Note: I use Safari on Mac.










share|improve this question

























  • I believe it is masked by the browser that is uploading the file.

    – Moab
    Jan 26 at 15:40











  • @Moab I'm using Safari by the way. Is that true for Safari?

    – delick
    Jan 26 at 15:41











  • I think it is true for all browsers.

    – Moab
    Jan 26 at 15:43











  • @Moab Ah great, thanks! May I ask how did you know this?

    – delick
    Jan 26 at 15:57











  • Because it would be a huge security hole if they did not.

    – Moab
    Jan 26 at 16:34














1












1








1








If I'm uploading a file to a website from a folder called "XXX", does the website know that I'm uploading that file from "XXX"?



In essence, will the website know the folder name?



Note: I use Safari on Mac.










share|improve this question
















If I'm uploading a file to a website from a folder called "XXX", does the website know that I'm uploading that file from "XXX"?



In essence, will the website know the folder name?



Note: I use Safari on Mac.







safari upload






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Jan 26 at 15:42







delick

















asked Jan 26 at 15:37









delickdelick

83




83













  • I believe it is masked by the browser that is uploading the file.

    – Moab
    Jan 26 at 15:40











  • @Moab I'm using Safari by the way. Is that true for Safari?

    – delick
    Jan 26 at 15:41











  • I think it is true for all browsers.

    – Moab
    Jan 26 at 15:43











  • @Moab Ah great, thanks! May I ask how did you know this?

    – delick
    Jan 26 at 15:57











  • Because it would be a huge security hole if they did not.

    – Moab
    Jan 26 at 16:34



















  • I believe it is masked by the browser that is uploading the file.

    – Moab
    Jan 26 at 15:40











  • @Moab I'm using Safari by the way. Is that true for Safari?

    – delick
    Jan 26 at 15:41











  • I think it is true for all browsers.

    – Moab
    Jan 26 at 15:43











  • @Moab Ah great, thanks! May I ask how did you know this?

    – delick
    Jan 26 at 15:57











  • Because it would be a huge security hole if they did not.

    – Moab
    Jan 26 at 16:34

















I believe it is masked by the browser that is uploading the file.

– Moab
Jan 26 at 15:40





I believe it is masked by the browser that is uploading the file.

– Moab
Jan 26 at 15:40













@Moab I'm using Safari by the way. Is that true for Safari?

– delick
Jan 26 at 15:41





@Moab I'm using Safari by the way. Is that true for Safari?

– delick
Jan 26 at 15:41













I think it is true for all browsers.

– Moab
Jan 26 at 15:43





I think it is true for all browsers.

– Moab
Jan 26 at 15:43













@Moab Ah great, thanks! May I ask how did you know this?

– delick
Jan 26 at 15:57





@Moab Ah great, thanks! May I ask how did you know this?

– delick
Jan 26 at 15:57













Because it would be a huge security hole if they did not.

– Moab
Jan 26 at 16:34





Because it would be a huge security hole if they did not.

– Moab
Jan 26 at 16:34










1 Answer
1






active

oldest

votes


















1














The browser is not supposed to send the folder part to the website,
as this might be taken as a form of attack.



From
RFC 6266 - Use of the Content-Disposition Header Field in the
Hypertext Transfer Protocol (HTTP)

:




Recipients MUST NOT be able to write into any location other than
one to which they are specifically entitled
. To illustrate the
problem, consider the consequences of being able to overwrite
well-known system locations (such as "/etc/passwd"). One strategy
to achieve this is to never trust folder name information in the
filename parameter, for instance by stripping all but the last
path segment and only considering the actual filename (where 'path
segments' are the components of the field value delimited by the
path separator characters "" and "/").




Any browser that includes the folder-part in the sent file-name risks being
cut-off by security services on the server website.
As far as I know, no browser does it.






share|improve this answer
























    Your Answer








    StackExchange.ready(function() {
    var channelOptions = {
    tags: "".split(" "),
    id: "3"
    };
    initTagRenderer("".split(" "), "".split(" "), channelOptions);

    StackExchange.using("externalEditor", function() {
    // Have to fire editor after snippets, if snippets enabled
    if (StackExchange.settings.snippets.snippetsEnabled) {
    StackExchange.using("snippets", function() {
    createEditor();
    });
    }
    else {
    createEditor();
    }
    });

    function createEditor() {
    StackExchange.prepareEditor({
    heartbeatType: 'answer',
    autoActivateHeartbeat: false,
    convertImagesToLinks: true,
    noModals: true,
    showLowRepImageUploadWarning: true,
    reputationToPostImages: 10,
    bindNavPrevention: true,
    postfix: "",
    imageUploader: {
    brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
    contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
    allowUrls: true
    },
    onDemand: true,
    discardSelector: ".discard-answer"
    ,immediatelyShowMarkdownHelp:true
    });


    }
    });














    draft saved

    draft discarded


















    StackExchange.ready(
    function () {
    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fsuperuser.com%2fquestions%2f1398734%2fdoes-websites-know-the-folder-name-when-i-upload-a-file-from-that-folder%23new-answer', 'question_page');
    }
    );

    Post as a guest















    Required, but never shown

























    1 Answer
    1






    active

    oldest

    votes








    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    1














    The browser is not supposed to send the folder part to the website,
    as this might be taken as a form of attack.



    From
    RFC 6266 - Use of the Content-Disposition Header Field in the
    Hypertext Transfer Protocol (HTTP)

    :




    Recipients MUST NOT be able to write into any location other than
    one to which they are specifically entitled
    . To illustrate the
    problem, consider the consequences of being able to overwrite
    well-known system locations (such as "/etc/passwd"). One strategy
    to achieve this is to never trust folder name information in the
    filename parameter, for instance by stripping all but the last
    path segment and only considering the actual filename (where 'path
    segments' are the components of the field value delimited by the
    path separator characters "" and "/").




    Any browser that includes the folder-part in the sent file-name risks being
    cut-off by security services on the server website.
    As far as I know, no browser does it.






    share|improve this answer




























      1














      The browser is not supposed to send the folder part to the website,
      as this might be taken as a form of attack.



      From
      RFC 6266 - Use of the Content-Disposition Header Field in the
      Hypertext Transfer Protocol (HTTP)

      :




      Recipients MUST NOT be able to write into any location other than
      one to which they are specifically entitled
      . To illustrate the
      problem, consider the consequences of being able to overwrite
      well-known system locations (such as "/etc/passwd"). One strategy
      to achieve this is to never trust folder name information in the
      filename parameter, for instance by stripping all but the last
      path segment and only considering the actual filename (where 'path
      segments' are the components of the field value delimited by the
      path separator characters "" and "/").




      Any browser that includes the folder-part in the sent file-name risks being
      cut-off by security services on the server website.
      As far as I know, no browser does it.






      share|improve this answer


























        1












        1








        1







        The browser is not supposed to send the folder part to the website,
        as this might be taken as a form of attack.



        From
        RFC 6266 - Use of the Content-Disposition Header Field in the
        Hypertext Transfer Protocol (HTTP)

        :




        Recipients MUST NOT be able to write into any location other than
        one to which they are specifically entitled
        . To illustrate the
        problem, consider the consequences of being able to overwrite
        well-known system locations (such as "/etc/passwd"). One strategy
        to achieve this is to never trust folder name information in the
        filename parameter, for instance by stripping all but the last
        path segment and only considering the actual filename (where 'path
        segments' are the components of the field value delimited by the
        path separator characters "" and "/").




        Any browser that includes the folder-part in the sent file-name risks being
        cut-off by security services on the server website.
        As far as I know, no browser does it.






        share|improve this answer













        The browser is not supposed to send the folder part to the website,
        as this might be taken as a form of attack.



        From
        RFC 6266 - Use of the Content-Disposition Header Field in the
        Hypertext Transfer Protocol (HTTP)

        :




        Recipients MUST NOT be able to write into any location other than
        one to which they are specifically entitled
        . To illustrate the
        problem, consider the consequences of being able to overwrite
        well-known system locations (such as "/etc/passwd"). One strategy
        to achieve this is to never trust folder name information in the
        filename parameter, for instance by stripping all but the last
        path segment and only considering the actual filename (where 'path
        segments' are the components of the field value delimited by the
        path separator characters "" and "/").




        Any browser that includes the folder-part in the sent file-name risks being
        cut-off by security services on the server website.
        As far as I know, no browser does it.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Jan 26 at 19:32









        harrymcharrymc

        264k14273582




        264k14273582






























            draft saved

            draft discarded




















































            Thanks for contributing an answer to Super User!


            • Please be sure to answer the question. Provide details and share your research!

            But avoid



            • Asking for help, clarification, or responding to other answers.

            • Making statements based on opinion; back them up with references or personal experience.


            To learn more, see our tips on writing great answers.




            draft saved


            draft discarded














            StackExchange.ready(
            function () {
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fsuperuser.com%2fquestions%2f1398734%2fdoes-websites-know-the-folder-name-when-i-upload-a-file-from-that-folder%23new-answer', 'question_page');
            }
            );

            Post as a guest















            Required, but never shown





















































            Required, but never shown














            Required, but never shown












            Required, but never shown







            Required, but never shown

































            Required, but never shown














            Required, but never shown












            Required, but never shown







            Required, but never shown







            Popular posts from this blog

            If I really need a card on my start hand, how many mulligans make sense? [duplicate]

            Alcedinidae

            Can an atomic nucleus contain both particles and antiparticles? [duplicate]