Cross-site scripting (XSS) vulnerability in claroline/linker/notfound.php in Claroline 1.8.11 allows remote attackers to inject arbitrary web script or HTML via the Referer HTTP header.
forum.claroline.net/viewtopic.php?f=69&t=16193&p=42102#p42099
gsasec.blogspot.com/2009/05/claroline-v1811-cross-site-scripting.html
secunia.com/advisories/35019
www.securityfocus.com/archive/1/503365/100/0/threaded
www.securityfocus.com/bid/34883
www.securitytracker.com/id?1022198
exchange.xforce.ibmcloud.com/vulnerabilities/50404