diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index b81ab1e..c36cb20 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -29,6 +29,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Security
+
+- **Admin guard no longer depends on route names.** `PageLayoutKitAdminAccessSubscriber` only checked routes whose
+  name starts with `admin_page_layout` / `admin_page_blocks`; importing the bundle routes with a `name_prefix:` (or
+  renaming them) served the layout admin and block edit endpoints without the access check. The bundle's admin
+  controllers are now guarded by class, and the route-name prefixes still apply.
+
 ## [1.8.0] - 2026-10-28
 
 Security: empty access_roles deny instead of granting everyone; CSRF fails closed without form CSRF protection. See [UPGRADING](UPGRADING.md#to-180).
diff --git a/src/EventSubscriber/PageLayoutKitAdminAccessSubscriber.php b/src/EventSubscriber/PageLayoutKitAdminAccessSubscriber.php
index 4bf1334..beecbdd 100644
--- a/src/EventSubscriber/PageLayoutKitAdminAccessSubscriber.php
+++ b/src/EventSubscriber/PageLayoutKitAdminAccessSubscriber.php
@@ -10,13 +10,18 @@
 use Symfony\Component\HttpKernel\KernelEvents;
 use Symfony\Component\Security\Core\Exception\AccessDeniedException;
 
+use function is_array;
+use function is_object;
 use function is_string;
+use function str_starts_with;
 
 /**
- * Enforces page layout admin access by route name prefix.
+ * Enforces page layout admin access on the bundle's admin controllers (by class) and on its route-name prefixes.
  */
 final readonly class PageLayoutKitAdminAccessSubscriber implements EventSubscriberInterface
 {
+    private const ADMIN_CONTROLLER_NAMESPACE = 'Nowo\\PageLayoutKitBundle\\Controller\\Admin\\';
+
     public function __construct(
         private PageLayoutKitAccessCheckerInterface $accessChecker,
     ) {
@@ -31,18 +36,31 @@ public static function getSubscribedEvents(): array
 
     public function onKernelController(ControllerEvent $event): void
     {
-        $route = $event->getRequest()->attributes->get('_route');
-        if (!is_string($route)) {
+        if (!$this->isAdminRequest($event)) {
             return;
         }
 
-        if (
-            str_starts_with($route, 'admin_page_layout')
-            || str_starts_with($route, 'admin_page_blocks')
-        ) {
-            if (!$this->accessChecker->canAccess()) {
-                throw new AccessDeniedException('Page layout admin requires an authorized user.');
-            }
+        if (!$this->accessChecker->canAccess()) {
+            throw new AccessDeniedException('Page layout admin requires an authorized user.');
         }
     }
+
+    /**
+     * The bundle's admin controllers are guarded by class, whatever the route names are: a host that imports the
+     * routes with a `name_prefix` (or names its own routes for these controllers) must not bypass the check. The
+     * route-name prefixes still cover custom host controllers that reuse the bundle's route names.
+     */
+    private function isAdminRequest(ControllerEvent $event): bool
+    {
+        $controller = $event->getController();
+        $object     = is_array($controller) ? $controller[0] : $controller;
+        if (is_object($object) && str_starts_with($object::class, self::ADMIN_CONTROLLER_NAMESPACE)) {
+            return true;
+        }
+
+        $route = $event->getRequest()->attributes->get('_route');
+
+        return is_string($route)
+            && (str_starts_with($route, 'admin_page_layout') || str_starts_with($route, 'admin_page_blocks'));
+    }
 }
diff --git a/tests/Unit/EventSubscriber/PageLayoutKitAdminAccessSubscriberTest.php b/tests/Unit/EventSubscriber/PageLayoutKitAdminAccessSubscriberTest.php
index 8ef506f..68f3056 100644
--- a/tests/Unit/EventSubscriber/PageLayoutKitAdminAccessSubscriberTest.php
+++ b/tests/Unit/EventSubscriber/PageLayoutKitAdminAccessSubscriberTest.php
@@ -4,9 +4,12 @@
 
 namespace Nowo\PageLayoutKitBundle\Tests\Unit\EventSubscriber;
 
+use Nowo\PageLayoutKitBundle\Controller\Admin\PageBlockEditController;
+use Nowo\PageLayoutKitBundle\Controller\Admin\PageLayoutController;
 use Nowo\PageLayoutKitBundle\EventSubscriber\PageLayoutKitAdminAccessSubscriber;
 use Nowo\PageLayoutKitBundle\Security\PageLayoutKitAccessCheckerInterface;
 use PHPUnit\Framework\TestCase;
+use ReflectionClass;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpKernel\Event\ControllerEvent;
 use Symfony\Component\HttpKernel\HttpKernelInterface;
@@ -62,14 +65,33 @@ public function testDeniesUnauthorizedAdminRoutes(): void
         $subscriber->onKernelController($this->createEvent('admin_page_blocks_edit'));
     }
 
-    private function createEvent(string|int|null $route): ControllerEvent
+    /** Routes imported with a `name_prefix` (or renamed by the host) must not bypass the guard. */
+    public function testDeniesBundleAdminControllersWhateverTheRouteName(): void
+    {
+        $checker = $this->createMock(PageLayoutKitAccessCheckerInterface::class);
+        $checker->expects(self::exactly(2))->method('canAccess')->willReturn(false);
+        $subscriber = new PageLayoutKitAdminAccessSubscriber($checker);
+
+        foreach ([PageLayoutController::class => 'layout', PageBlockEditController::class => 'editModal'] as $class => $method) {
+            $controller = (new ReflectionClass($class))->newInstanceWithoutConstructor();
+            $callable   = [$controller, $method];
+            self::assertIsCallable($callable);
+            try {
+                $subscriber->onKernelController($this->createEvent('cms_admin_layout', $callable));
+                self::fail($class . ' must be guarded');
+            } catch (AccessDeniedException) {
+            }
+        }
+    }
+
+    private function createEvent(string|int|null $route, ?callable $controller = null): ControllerEvent
     {
         $request = new Request();
         $request->attributes->set('_route', $route);
 
         return new ControllerEvent(
             $this->createMock(HttpKernelInterface::class),
-            static fn (): null => null,
+            $controller ?? static fn (): null => null,
             $request,
             HttpKernelInterface::MAIN_REQUEST,
         );