Multiple cross-site scripting (XSS) vulnerabilities in RunCMS before 1.6.1 allow remote attackers to inject arbitrary web script or HTML via (1) the subject parameter to modules/news/submit.php; (2) the PATH_INFO to modules/news/index.php, possibly related to the XoopsPageNav class; or (3) an avatar image to edituser.php.
https://www.exploit-db.com/exploits/4790
https://exchange.xforce.ibmcloud.com/vulnerabilities/39293
https://exchange.xforce.ibmcloud.com/vulnerabilities/39292
http://www.securityfocus.com/archive/1/485512/100/0/threaded
http://www.runcms.org/modules/mydownloads/singlefile.php?lid=131
http://www.dsec.ru/about/articles/web_xss