The issue concerns multiple cross-site request forgery (CSRF) vulnerabilities in the web interface. These vulnerabilities allow remote attackers to hijack the intranet connectivity of arbitrary users for requests that perform a login via "goform/login". Additionally, attackers can hijack the authentication of administrators for requests that enable external logins via an "mso remote enable" action to "goform/RemoteRange" or change DNS settings via a "manual dns enable" action to "goform/Basic".