From 270302d74f7206a0ceafbf0c57d520d81cc16c27 Mon Sep 17 00:00:00 2001
From: "Simon L." <szaimen@e.mail.de>
Date: Tue, 3 Feb 2026 16:51:54 +0100
Subject: [PATCH] domain-validator: adjust querying the domain parameter

Signed-off-by: Simon L. <szaimen@e.mail.de>
---
 php/domain-validator.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/php/domain-validator.php b/php/domain-validator.php
index 558d642b..4f622653 100644
--- a/php/domain-validator.php
+++ b/php/domain-validator.php
@@ -1,7 +1,10 @@
 <?php
 declare(strict_types=1);
 
-$domain = $_GET['domain'] ?? '';
+$domain = '';
+if (isset($_GET['domain']) && is_string($_GET['domain'])) {
+    $domain = $_GET['domain'];
+}
 
 if (!str_contains($domain, '.')) { 
     http_response_code(400);