diff --git a/.gitignore b/.gitignore
index 3e42589..8264c45 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
 uoj_data/
+uoj_data_1/
+uoj_data_2/
 .php-cs-fixer.cache
 docker-compose.local.yml
diff --git a/web/app/controllers/download.php b/web/app/controllers/download.php
index e2c7e63..f888e00 100644
--- a/web/app/controllers/download.php
+++ b/web/app/controllers/download.php
@@ -41,8 +41,8 @@
 				become404Page();
 			}
 
-			if (!isProblemVisibleToUser($problem, $myUser)) {
-				become404Page();
+			if (!hasProblemPermission($myUser, $problem)) {
+				become403Page();
 			}
 
 			$id = $_GET['id'];
@@ -56,7 +56,7 @@
 				become404Page();
 			}
 
-			if (!isProblemVisibleToUser($problem, $myUser)) {
+			if (!hasProblemPermission($myUser, $problem)) {
 				become404Page();
 			}
 
diff --git a/web/app/controllers/super_manage.php b/web/app/controllers/super_manage.php
index a51453e..6333a3b 100644
--- a/web/app/controllers/super_manage.php
+++ b/web/app/controllers/super_manage.php
@@ -971,6 +971,7 @@ EOD,
 							<li>用户被封禁后将不能再次登录系统。</li>
 							<li>将当前用户移除权限后将无法再次访问本页面。</li>
 							<li>在修改用户类别前请仔细核对用户名以免产生不必要的麻烦。</li>
+							<li>如需为用户设置题目上传者、题目管理员等权限，请前往对应用户的个人资料编辑页面，点击「特权」选项卡修改。</li>
 						</ul>
 					</div>
 				</div>