execute.js

/*
JSPrime v0.1 beta
=================
The MIT License (MIT)

Copyright (c) 2013 Nishant Das Patnaik (nishant.dp@gmail.com)
Copyright (c) 2013 Sarathi Sabyasachi Sahoo (sarathisahoo@gmail.com)

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
var msg = "DOM XSS Confirmed !!";
var domInject = [];
var domInjectSource = [];

function executeJSPrime() {
  var sOrangeData = document.getElementById('aOrangeData').value;
  var sOtherData = document.getElementById('aOtherData').value;
  var sRedData = document.getElementById('aRedData').value;
  var sSink = document.getElementById('aSink').value;
  var sSource = document.getElementById('aSource').value;

  var aOrangeData = sOrangeData.split(",");
  var aOtherData = sOtherData.split(",");
  var aRedData = sRedData.split(",");
  domInject = sSink.split(",");
  domInjectSource = sSource.split(",");

  var aScr = document.getElementsByTagName('script')[0].innerHTML.split("\n");

  var aDuplicate = [];
  for (var i = 0; i < aOrangeData.length - 1; i++) {
    var tempData;
    try {
      if (aDuplicate.indexOf(sOtherData[i]) != -1)
        continue;
      aDuplicate.push(sOtherData[i]);

      var data = aScr[parseInt(aOrangeData[i])];
      var aSource = data.split("=");
      aSource[1] = "\"alert('" + msg + "');//<img src='1' onerror='alert(msg)' />\"";

      data = aSource.join("=");
      tempData = data;
      eval(data);
    } catch (err) {
      try {
        if (err.message.indexOf("is not defined") != -1) {
          var newVar = err.message.replace(" is not defined", "");
          eval("var " + newVar);
          eval(tempData);
        }
      } catch (err2) {
        //alert(err2);
      }
    }
  }

  for (var j = 0; j < 2; j++) {
    var tempData;
    var aDuplicate = [];
    for (var i = 0; i < aOtherData.length - 1; i++) {
      try {
        if (aDuplicate.indexOf(aOtherData[i]) != -1)
          continue;
        aDuplicate.push(aOtherData[i]);

        var data = aScr[parseInt(aOtherData[i])];
        if (eval(data) == undefined); {
          if (j == 1) {
            var aSource = data.split("=");
            aSource[1] = "\"alert('" + msg + "');//<img src='1' onerror='alert(msg)' />\"";
            data = aSource.join("=");
            eval(data);
          }
        }
        tempData = data;
      } catch (err) {
        try {
          if (err.message.indexOf("is not defined") != -1) {
            var newVar = err.message.replace(" is not defined", "");
            eval("var " + newVar);
            eval(tempData);
          }
        } catch (err2) {
          //alert(err2);
        }
      }
    }
  }

  for (var i = 0; i < aRedData.length - 1; i++) {
    var tempData;
    try {
      var data = aScr[parseInt(aRedData[i])];
      var aSource = data.split("=");
      for (var j = 0; j < domInject.length; j++) {
        if (aSource[0].indexOf(domInject[j]) != -1) {
          aSource[0] = "document.getElementsByTagName('body')[0].innerHTML";
          for (var k = 0; k < domInjectSource.length; k++) {
            if (aSource[1].indexOf(domInjectSource[k]) != -1) {
              aSource[1] = "\"alert('" + msg + "');//<img src='1' onerror='alert(msg)' />\"";
            }
          }
          data = aSource.join("=");
        }
      }
      tempData = data;
      eval(data);
    } catch (err) {
      try {
        if (err.message.indexOf("is not defined") != -1) {
          var newVar = err.message.replace(" is not defined", "");
          eval("var " + newVar);
          eval(tempData);
        }
      } catch (err2) {
        //alert(err2);
      }
    }
  }

  /*
	try
	{
		eval(aScr[7]);
	}
	catch(err)
	{
		alert(err);
	}
	*/

}