CVE 2010-3695
Cross-site scripting (XSS) vulnerability in fetchmailprefs.php in Horde IMP before 4.3.8, and Horde Groupware Webmail Edition before 1.2.7, allows remote attackers to inject arbitrary web script or HTML via the fm_id parameter in a fetchmail_
See the
CVE page on Mitre.org
for more details.