Cross-site scripting (XSS) vulnerability in the login feature in Habari CMS 0.5.1 allows remote attackers to inject arbitrary web script or HTML via the habari_username parameter.
https://exchange.xforce.ibmcloud.com/vulnerabilities/45951
https://euvd.enisa.europa.eu/vulnerability/EUVD-2008-4581
http://www.securityfocus.com/bid/31794
http://secunia.com/advisories/32311
http://packetstorm.linuxsecurity.com/0810-exploits/habaricms-xss.txt