Multiple cross-site request forgery (CSRF) vulnerabilities in PHPJabbers Appointment Scheduler 2.0 allow remote attackers to hijack the authentication of administrators for requests that (1) conduct cross-site scripting (XSS) attacks via the i18n[1][name] parameter in a pjActionCreate action to the pjAdminServices controller or (2) add an administrator via a pjActionCreate action to the pjAdminUsers controller.