Booking logic flaw in Easy!Appointments v1.5.1 allows unauthenticated attackers to create appointments with excessively long durations, causing a denial of service by blocking all future booking availability.
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
Access control involves the use of several protection mechanisms such as:
When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses: