Cross-Site Request Forgery (CSRF) in Apache Roller 5.0.1 through 6.1.6 allows an unauthenticated...

Cross-Site Request Forgery (CSRF) in Apache Roller 5.0.1 through 6.1.6 allows an unauthenticated attacker to create an administrator account if a logged-in Roller administrator opens a link that the attacker controls. The request-token check applied only to POST requests, and administrative actions also accepted GET requests. Users are recommended to upgrade to Apache Roller 6.1.7 or later, which requires POST and a valid token for actions that change data.