Language: PHP
Label: vulnerable
CWE: CWE-77 \u2014 Improper Neutralization of Special Elements used in a Command ('Command Injection')
The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

Code:
    private function filterIn(){
        $in = $this->in;
        unset($in['URLrouter'],$in['URLremote'],$in['HTTP_DEBUG_URL'],$in['CSRF_TOKEN'],$in['accessToken'],$in[str_replace(".", "/", ACTION)]);
        return $in;
    }