The triggers functionality in Perforce Server 2008.1 allows remote authenticated users with super privileges to execute arbitrary operating-system commands by using a "p4 client" command in conjunction with the form-in trigger script.
Improper Neutralization of Special Elements used in an OS Command The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command before it is sent to a downstream component.