Cross-site scripting (XSS) in Internet Explorer 5.5 and 6.0, possibly in a component that is also used by other Microsoft products, allows remote attackers to insert arbitrary web script via an XML file that contains a parse error, which inserts the script in the resulting error message.
https://exchange.xforce.ibmcloud.com/vulnerabilities/12334
http://www.securityfocus.com/bid/7938
http://secunia.com/advisories/9055
http://marc.info/?l=ntbugtraq&m=105585001905002&w=2
http://marc.info/?l=bugtraq&m=105595990924165&w=2
http://marc.info/?l=bugtraq&m=105585986015421&w=2
http://lists.grok.org.uk/pipermail/full-disclosure/2003-June/005762.html
http://archives.neohapsis.com/archives/bugtraq/2003-06/0120.html