Cross-site scripting (XSS) vulnerability in Horde Dynamic IMP (DIMP) before 1.1.5, and Horde Groupware Webmail Edition before 1.2.7, allows remote attackers to inject arbitrary web script or HTML via vectors related to displaying mailbox names.
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.