3 files changed, 23 insertions, 2 deletions
diff --git a/phpBB/includes/functions.php b/phpBB/includes/functions.php
index a152d9b620..ba448f3125 100644
--- a/phpBB/includes/functions.php
+++ b/phpBB/includes/functions.php
@@ -2776,7 +2776,7 @@ function confirm_box($check, $title = '', $hidden = '', $html_body = 'confirm_bo
 	$u_action .= ((strpos($u_action, '?') === false) ? '?' : '&amp;') . 'confirm_key=' . $confirm_key;
 
 	$template->assign_vars(array(
-		'MESSAGE_TITLE'		=> (!isset($user->lang[$title])) ? $user->lang['CONFIRM'] : $user->lang[$title],
+		'MESSAGE_TITLE'		=> (!isset($user->lang[$title])) ? $user->lang['CONFIRM'] : $user->lang($title, 1),
 		'MESSAGE_TEXT'		=> (!isset($user->lang[$title . '_CONFIRM'])) ? $title : $user->lang[$title . '_CONFIRM'],
 
 		'YES_VALUE'			=> $user->lang['YES'],
diff --git a/phpBB/includes/functions_download.php b/phpBB/includes/functions_download.php
index c571de579e..86c60c31ff 100644
--- a/phpBB/includes/functions_download.php
+++ b/phpBB/includes/functions_download.php
@@ -677,6 +677,8 @@ function phpbb_download_handle_forum_auth($db, $auth, $topic_id)
 */
 function phpbb_download_handle_pm_auth($db, $auth, $user_id, $msg_id)
 {
+	global $phpbb_dispatcher;
+
 	if (!$auth->acl_get('u_pm_download'))
 	{
 		send_status_line(403, 'Forbidden');
@@ -685,6 +687,18 @@ function phpbb_download_handle_pm_auth($db, $auth, $user_id, $msg_id)
 
 	$allowed = phpbb_download_check_pm_auth($db, $user_id, $msg_id);
 
+	/**
+	* Event to modify PM attachments download auth
+	*
+	* @event core.modify_pm_attach_download_auth
+	* @var	bool	allowed		Whether the user is allowed to download from that PM or not
+	* @var	int		msg_id		The id of the PM to download from
+	* @var	int		user_id		The user id for auth check
+	* @since 3.1.11-RC1
+	*/
+	$vars = array('allowed', 'msg_id', 'user_id');
+	extract($phpbb_dispatcher->trigger_event('core.modify_pm_attach_download_auth', compact($vars)));
+
 	if (!$allowed)
 	{
 		send_status_line(403, 'Forbidden');
diff --git a/phpBB/includes/functions_privmsgs.php b/phpBB/includes/functions_privmsgs.php
index 1639eb1a4c..4aad1746d5 100644
--- a/phpBB/includes/functions_privmsgs.php
+++ b/phpBB/includes/functions_privmsgs.php
@@ -889,9 +889,16 @@ function update_unread_status($unread, $msg_id, $user_id, $folder_id)
 		SET pm_unread = 0
 		WHERE msg_id = $msg_id
 			AND user_id = $user_id
-			AND folder_id = $folder_id";
+			AND folder_id = $folder_id
+			AND pm_unread = 1";
 	$db->sql_query($sql);
 
+	// If the message is already marked as read, we just skip the rest to avoid negative PM count
+	if (!$db->sql_affectedrows())
+	{
+		return;
+	}
+
 	$sql = 'UPDATE ' . USERS_TABLE . "
 		SET user_unread_privmsg = user_unread_privmsg - 1
 		WHERE user_id = $user_id";