Cross-site scripting (XSS) vulnerability in 'raw' page output mode for MediaWiki 1.3.4 and earlier allows remote attackers to inject arbitrary web script or HTML.
https://exchange.xforce.ibmcloud.com/vulnerabilities/17578
http://www.securityfocus.com/bid/11302
http://sourceforge.net/project/shownotes.php?group_id=34373&release_id=271848