From 5f29e67c56f3ef8e3b6733b6f633323487a49f98 Mon Sep 17 00:00:00 2001
From: Jill Stingray <stingray@jill.pl>
Date: Thu, 11 Jun 2020 12:47:33 +0300
Subject: [PATCH] Fix CSRF vulnerability

---
 chandler/MVC/Routing/Router.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/chandler/MVC/Routing/Router.php b/chandler/MVC/Routing/Router.php
index d9f2ffa..9d134fb 100644
--- a/chandler/MVC/Routing/Router.php
+++ b/chandler/MVC/Routing/Router.php
@@ -85,7 +85,7 @@ class Router
                 [$hash, $nonce] = $data;
                 
                 if(sodium_memcmp($this->makeCSRFToken($route, hex2bin($nonce)), "$hash#$nonce") === 0)
-                    $GLOBALS["csrfCheck"] = true;
+                    $GLOBALS["csrfCheck"] = parse_url($_SERVER["HTTP_REFERER"], PHP_URL_HOST) === $_SERVER["HTTP_HOST"];
             } catch(\SodiumException $ex) {}
         }