The Plack::Middleware::XSRFBlock package before 0.0.19 for Perl allows attackers to bypass a CSRF protection mechanism via an empty form value and an empty cookie (if signed cookies are disabled).
                
                    Exploit prediction scoring system (EPSS) score
                    
                        
                            EPSS Score 0.0
                        
                    
                    
                        
                            EPSS Ranking 6.8%