diff --git a/upload/groupcp.php b/upload/groupcp.php
index 11866e252..6bb033593 100644
--- a/upload/groupcp.php
+++ b/upload/groupcp.php
@@ -47,7 +47,7 @@ set_die_append_msg();
 $group_id = isset($_REQUEST[POST_GROUPS_URL]) ? intval($_REQUEST[POST_GROUPS_URL]) : null;
 $start    = isset($_REQUEST['start']) ? abs(intval($_REQUEST['start'])) : 0;
 $per_page = $bb_cfg['groupcp_members_per_page'];
-$view_mode = isset($_REQUEST['view']) ? $_REQUEST['view'] : null;
+$view_mode = isset($_REQUEST['view']) ? (string) $_REQUEST['view'] : null;
 
 $group_info = array();
 $is_moderator = false;
diff --git a/upload/posting.php b/upload/posting.php
index b80ac989e..011dca4ec 100644
--- a/upload/posting.php
+++ b/upload/posting.php
@@ -698,7 +698,7 @@ $template->assign_vars(array(
 	'SUBJECT'               => $subject,
 	'MESSAGE'               => $message,
 
-    'POSTER_RELEASE_GROUPS' => ($poster_release_groups) ? $poster_release_groups : '',
+    'POSTER_RELEASE_GROUPS' => isset($poster_release_groups) && !empty($poster_release_groups) ? $poster_release_groups : '',
     'ATTACH_POSTER_RG_SIG'  => ($switch_poster_rg_sig) ? $switch_poster_rg_sig : false,
 
 	'U_VIEWTOPIC'           => ( $mode == 'reply' ) ? "viewtopic.php?" . POST_TOPIC_URL . "=$topic_id&postorder=desc" : '',