diff --git a/tests/Feature/AdminPlatformOrderShowLeadIdFromBackHintTest.php b/tests/Feature/AdminPlatformOrderShowLeadIdFromBackHintTest.php
index 1bb9ace..48a2e73 100644
--- a/tests/Feature/AdminPlatformOrderShowLeadIdFromBackHintTest.php
+++ b/tests/Feature/AdminPlatformOrderShowLeadIdFromBackHintTest.php
@@ -132,4 +132,60 @@ class AdminPlatformOrderShowLeadIdFromBackHintTest extends TestCase
         $res->assertDontSee('查看线索', false);
         $res->assertDontSee('/admin/platform-leads?', false);
     }
+
+    public function test_show_should_not_render_lead_hint_when_back_is_unsafe_even_if_it_contains_lead_id(): void
+    {
+        $this->loginAsPlatformAdmin();
+
+        $merchant = Merchant::query()->firstOrFail();
+
+        $plan = Plan::query()->create([
+            'code' => 'show_back_lead_unsafe_plan',
+            'name' => '订单详情unsafe back线索提示测试套餐',
+            'billing_cycle' => 'monthly',
+            'price' => 10,
+            'list_price' => 10,
+            'status' => 'active',
+            'sort' => 10,
+            'published_at' => now(),
+        ]);
+
+        $order = PlatformOrder::query()->create([
+            'merchant_id' => $merchant->id,
+            'plan_id' => $plan->id,
+            'site_subscription_id' => null,
+            'created_by_admin_id' => 1,
+            'order_no' => 'PO_SHOW_BACK_LEAD_0003',
+            'order_type' => 'new_purchase',
+            'status' => 'pending',
+            'payment_status' => 'unpaid',
+            'payment_channel' => null,
+            'plan_name' => $plan->name,
+            'billing_cycle' => $plan->billing_cycle,
+            'period_months' => 1,
+            'quantity' => 1,
+            'list_amount' => 10,
+            'discount_amount' => 0,
+            'payable_amount' => 10,
+            'paid_amount' => 0,
+            'placed_at' => now(),
+            'plan_snapshot' => ['plan_id' => $plan->id],
+            'meta' => [],
+            'remark' => 'test',
+        ]);
+
+        $unsafeBack = '/admin/platform-orders?' . Arr::query([
+            'lead_id' => 56,
+            'back' => '/admin',
+        ]);
+
+        $res = $this->get('/admin/platform-orders/' . $order->id . '?' . Arr::query([
+            'back' => $unsafeBack,
+        ]));
+
+        $res->assertOk();
+        $res->assertDontSee('来源线索：#56', false);
+        $res->assertDontSee('查看线索', false);
+        $res->assertDontSee('/admin/platform-leads?', false);
+    }
 }