Cross-site request forgery (CSRF) vulnerability in IPplan 4.91a allows remote attackers to hijack the authentication of administrators for requests that (1) change the password, (2) add users, or (3) delete users via unknown vectors.
Cross-Site Request Forgery The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.