Which of the following threat types involves an application that does not validate authorization for portions of itself after the initial checks? 

Answer options:

A. Injection
B. Missing function-level access control
C. Cross-site request forgery
D. Cross-site scripting

B

It is imperative that an application perform checks when each function or portion of the application is accessed, to ensure that the user is properly authorized to access it. Without continual checks each time a function is accessed, an attacker could forge requests to access portions of the application where authorization has not been granted.