Cross-site scripting (XSS) vulnerability in the meta plugin in Ikiwiki before 1.1.47 allows remote attackers to inject arbitrary web script or HTML via meta tags.
http://www.securityfocus.com/bid/27760
http://www.debian.org/security/2008/dsa-1523
http://secunia.com/advisories/29369
http://secunia.com/advisories/28911