The _bad_protocol_once function in phpgwapi/inc/class.kses.inc.php in KSES, as used in eGroupWare before 1.4.003, Moodle before 1.8.5, and other products, allows remote attackers to bypass HTML filtering and conduct cross-site scripting (XSS) attacks via a string containing crafted URL protocols.
https://www.redhat.com/archives/fedora-package-announce/2008-July/msg00331.html
https://exchange.xforce.ibmcloud.com/vulnerabilities/41435
http://www.vupen.com/english/advisories/2008/0989/references
http://www.securityfocus.com/bid/28424
http://www.openwall.com/lists/oss-security/2008/07/08/14
http://www.gentoo.org/security/en/glsa/glsa-200805-04.xml
http://www.egroupware.org/changelog
http://www.debian.org/security/2009/dsa-1871
http://www.debian.org/security/2008/dsa-1691
http://secunia.com/advisories/32446
http://secunia.com/advisories/32400
http://secunia.com/advisories/31167
http://secunia.com/advisories/31018
http://secunia.com/advisories/31017
http://secunia.com/advisories/30986
http://secunia.com/advisories/30073
http://secunia.com/advisories/29491
http://lists.opensuse.org/opensuse-security-announce/2008-07/msg00006.html