Cross-site scripting (XSS) vulnerability in mvnForum 1.1 GA allows remote authenticated users to inject arbitrary web script or HTML via the topic field, which is later displayed by user/viewthread.jsp through use of the "quick reply button."
Improper Neutralization of Input During Web Page Generation 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.