Multiple cross-site scripting (XSS) vulnerabilities in OSClass before 3.4.2 allow remote attackers to inject arbitrary web script or HTML via the (1) action or (2) nsextt parameter to oc-admin/index.php or the (3) nsextt parameter in an items_reported action to oc-admin/index.php.
blog.osclass.org/2014/09/15/osclass-3-4-2-ready-download
packetstormsecurity.com/files/128286/OsClass-3.4.1-Cross-Site-Scripting.html
www.securityfocus.com/archive/1/533457/100/0/threaded
github.com/osclass/Osclass/commit/c163bf5910d0d36424d7fc678da6b03a0e443435
www.netsparker.com/xss-vulnerabilities-in-osclass/