Unspecified vulnerability in the Horde API in Horde 3.1 before 3.1.6 and 3.2 before 3.2 before 3.2-RC2; Turba H3 2.1 before 2.1.6 and 2.2 before 2.2-RC2; Kronolith H3 2.1 before 2.1.7 and H3 2.2 before 2.2-RC2; Nag H3 2.1 before 2.1.4 and 2.2 before 2.2-RC2; Mnemo H3 2.1 before 2.1.2 and 2.2 before 2.2-RC2; Horde Groupware 1.0 before 1.0.3 and 1.1 before 1.1-RC2; and Groupware Webmail Edition 1.0 before 1.0.4 and 1.1 before 1.1-RC2 has unknown impact and attack vectors.

Multiple cross-site scripting (XSS) vulnerabilities in templates/tasklists/tasklists.inc in Horde Nag Task List Manager H3 before 2.0.4 allow remote authenticated users to inject arbitrary web script or HTML via (1) the tasklist's name or (2) description, when creating a new tasklist.