Self replicating source

I’ve been having a lot of fun with the sla.ckers XSS replication contest and I found a cool way to replicate source code of the html document which I haven’t seen anywhere before. Check it out:-


This alerts the entire HTML document in Firefox (hopefully IE7 as well). Which is pretty cool 🙂

Here is my complete entry which submits the source of itself and posts the content:-


The slice would have to be adjusted depending on the size of the document and the goal of the contest is to produce the smallest possible replication vector (with a couple of other rules).

5 Responses to “Self replicating source”

  1. .mario writes:

    This is interesting indeed! And could be used for many purposes like scanning the page content for malicious stuff getting rendered etc (combine this with onDomReady).

    Very nice 😉

  2. vindic writes:

    veeery nice man

  3. Gareth Heyes writes:

    Works in IE7 finally managed to test it

  4. Nils writes:

    Might be interested in this as well:

  5. Gareth Heyes writes:


    Cool thanks! 🙂