Describe CVE-2013-5309.
What is CVE-2013-5309?
Cross-site scripting (XSS) vulnerability in install/forum_data/src/custom_fields.inc.t in FUDforum 3.0.4.1 and earlier, when registering a new user, allows remote attackers to inject arbitrary web script or HTML via a custom profile field to index.php.  NOTE: some of these details are obtained from third party information..