Multiple cross-site scripting (XSS) vulnerabilities in fetchmailprefs.php in Horde IMP before 4.3.8, and Horde Groupware Webmail Edition before 1.2.7, allow remote attackers to inject arbitrary web script or HTML via the (1) username (aka fmusername), (2) password (aka fmpassword), or (3) server (aka fmserver) field in a fetchmail_prefs_save action, related to the Fetchmail configuration, a different issue than CVE-2010-3695.  NOTE: some of these details are obtained from third party information.