Simple Invoices Simple Invoices 2013.1

Multiple cross-site request forgery (CSRF) vulnerabilities in Simple Invoices 2013.1.beta.8 allow remote attackers to hijack the authentication of admins for requests that can (1) create new administrator user accounts and take over the entire application, (2) create regular user accounts, or (3) change configuration parameters such as tax rates and the enable/disable status of PayPal payment modules.