Cross-site request forgery (CSRF) vulnerability in cgi-bin/users.cgi in Brickcom FB-100Ap, WCB-100Ap, MD-100Ap, WFB-100Ap, OB-100Ae, OSD-040E, and possibly other camera models with firmware 3.1.0.8 and earlier, allows remote attackers to hijack the authentication of administrators for requests that add users.