phpFox 4.8.13 PHP Object Injection

phpFox versions 4.8.13 and below have an issue where user input passed through the "url" request parameter to the /core/redirect route is not properly sanitized before being used in a call to the unserialize() PHP function. This can be exploited by remote, unauthenticated attackers to inject arbitrary PHP objects into the application scope, allowing them to perform a variety of attacks, such as executing arbitrary PHP code.

application attackers call exploited function inject injection input issue object parameter php redirect request scope unauthenticated url