diff --git a/CHANGELOG.md b/CHANGELOG.md
index f7ff05c1..3ff962a3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## [Unreleased]
+
+### Fixed
+
+- Fix administrators losing access to a block's configuration after setting a profile to "no access" on that block.
+
 ## [1.24.4] - 2026-08-06
 
 ### Fixed
diff --git a/front/container.form.php b/front/container.form.php
index adfb8a6b..73a59b37 100644
--- a/front/container.form.php
+++ b/front/container.form.php
@@ -28,8 +28,6 @@
  * -------------------------------------------------------------------------
  */
 
-use Glpi\Exception\Http\AccessDeniedHttpException;
-
 Session::checkLoginUser();
 
 if (empty($_GET['id'])) {
@@ -63,12 +61,9 @@
     Html::back();
 } else {
 
-    if ((int) $_GET['id'] > 0) {
-        $right = PluginFieldsProfile::getRightOnContainer($_SESSION['glpiactiveprofile']['id'], $_GET['id']);
-        if ($right < READ) {
-            throw new AccessDeniedHttpException();
-        }
-    }
+    // Admin config screen: gate with the standard "config" right, not the per-profile
+    // block-visibility right (which would let an admin lock himself out of the config).
+    $container->check((int) $_GET['id'] > 0 ? (int) $_GET['id'] : -1, READ);
 
     Html::header(
         __('Additional fields', 'fields'),