Version 4.1.19

system/Login/Exception.php

@@ -2,9 +2,9 @@
 /**
  * @brief		Login Exception Class
  * @author		<a href='http://www.invisionpower.com'>Invision Power Services, Inc.</a>
- * @copyright	(c) 2001 - SVN_YYYY Invision Power Services, Inc.
+ * @copyright	(c) 2001 - 2016 Invision Power Services, Inc.
  * @license		http://www.invisionpower.com/legal/standards/
- * @package		IPS Social Suite
+ * @package		IPS Community Suite
  * @since		26 Mar 2013
  * @version		SVN_VERSION_NUMBER
  */
@@ -58,7 +58,8 @@ class _Exception extends \DomainException
 	{
 		if ( $code === static::BAD_PASSWORD and $member !== NULL )
 		{
-			$failedLogins = $member->failed_logins;
+			/* $member->failed_logins may not be an array explicitly when upgrading due to past bugs */
+			$failedLogins = is_array( $member->failed_logins ) ? $member->failed_logins : array();
 			$failedLogins[ \IPS\Request::i()->ipAddress() ][] = time();
 			$member->failed_logins = $failedLogins;
 			$member->save();