diff --git src/bp-blogs/bp-blogs-widgets.php src/bp-blogs/bp-blogs-widgets.php
index 8a8f590..cae2508 100644
--- src/bp-blogs/bp-blogs-widgets.php
+++ src/bp-blogs/bp-blogs-widgets.php
@@ -60,10 +60,13 @@ class BP_Blogs_Recent_Posts_Widget extends WP_Widget {
 		 * Filters the Blogs Recent Posts widget title.
 		 *
 		 * @since BuddyPress (2.2.0)
+		 * @since BuddyPress (2.3.0) Added 'instance' and 'id_base' to arguments passed to filter.
 		 *
-		 * @param string $title The widget title.
+		 * @param string $title    The widget title.
+		 * @param array  $instance The settings for the particular instance of the widget.
+		 * @param string $id_base  Root ID for all widgets of this type.
 		 */
-		$title = apply_filters( 'widget_title', $instance['title'] );
+		$title = apply_filters( 'widget_title', $instance['title'], $instance, $this->id_base );
 
 		echo $args['before_widget'];
 		echo $args['before_title'] . $title . $args['after_title'];
diff --git src/bp-core/bp-core-widgets.php src/bp-core/bp-core-widgets.php
index 8ea3375..05c88ba 100644
--- src/bp-core/bp-core-widgets.php
+++ src/bp-core/bp-core-widgets.php
@@ -55,10 +55,13 @@ class BP_Core_Login_Widget extends WP_Widget {
 		 * Filters the title of the Login widget.
 		 *
 		 * @since BuddyPress (1.9.0)
+		 * @since BuddyPress (2.3.0) Added 'instance' and 'id_base' to arguments passed to filter.
 		 *
-		 * @param string $title The widget title.
+		 * @param string $title    The widget title.
+		 * @param array  $instance The settings for the particular instance of the widget.
+		 * @param string $id_base  Root ID for all widgets of this type.
 		 */
-		$title = apply_filters( 'widget_title', $title );
+		$title = apply_filters( 'widget_title', $instance['title'], $instance, $this->id_base );
 
 		echo $args['before_widget'];
 
diff --git src/bp-friends/bp-friends-widgets.php src/bp-friends/bp-friends-widgets.php
index 831b005..ad4205d 100644
--- src/bp-friends/bp-friends-widgets.php
+++ src/bp-friends/bp-friends-widgets.php
@@ -80,10 +80,13 @@ class BP_Core_Friends_Widget extends WP_Widget {
 		 * Filters the Friends widget title.
 		 *
 		 * @since BuddyPress (1.8.0)
+		 * @since BuddyPress (2.3.0) Added 'instance' and 'id_base' to arguments passed to filter.
 		 *
-		 * @param string $title The widget title.
+		 * @param string $title    The widget title.
+		 * @param array  $instance The settings for the particular instance of the widget.
+		 * @param string $id_base  Root ID for all widgets of this type.
 		 */
-		$title = apply_filters( 'widget_title', $instance['title'] );
+		$title = apply_filters( 'widget_title', $instance['title'], $instance, $this->id_base );
 
 		echo $before_widget;
 
diff --git src/bp-groups/bp-groups-widgets.php src/bp-groups/bp-groups-widgets.php
index 808ee02..2117aed 100644
--- src/bp-groups/bp-groups-widgets.php
+++ src/bp-groups/bp-groups-widgets.php
@@ -64,10 +64,13 @@ class BP_Groups_Widget extends WP_Widget {
 		 * Filters the title of the Groups widget.
 		 *
 		 * @since BuddyPress (1.8.0)
+		 * @since BuddyPress (2.3.0) Added 'instance' and 'id_base' to arguments passed to filter.
 		 *
-		 * @param string $value The widget title.
+		 * @param string $title    The widget title.
+		 * @param array  $instance The settings for the particular instance of the widget.
+		 * @param string $id_base  Root ID for all widgets of this type.
 		 */
-		$title = apply_filters( 'widget_title', $instance['title'] );
+		$title = apply_filters( 'widget_title', $instance['title'], $instance, $this->id_base );
 
 		echo $before_widget;
 
diff --git src/bp-members/bp-members-widgets.php src/bp-members/bp-members-widgets.php
index ba010f6..c3f8993 100644
--- src/bp-members/bp-members-widgets.php
+++ src/bp-members/bp-members-widgets.php
@@ -63,10 +63,13 @@ class BP_Core_Members_Widget extends WP_Widget {
 		 * Filters the title of the Members widget.
 		 *
 		 * @since BuddyPress (1.8.0)
+		 * @since BuddyPress (2.3.0) Added 'instance' and 'id_base' to arguments passed to filter.
 		 *
-		 * @param string $value The widget title.
+		 * @param string $title    The widget title.
+		 * @param array  $instance The settings for the particular instance of the widget.
+		 * @param string $id_base  Root ID for all widgets of this type.
 		 */
-		$title = apply_filters( 'widget_title', $instance['title'] );
+		$title = apply_filters( 'widget_title', $instance['title'], $instance, $this->id_base );
 
 		echo $before_widget;
 
@@ -232,10 +235,13 @@ class BP_Core_Whos_Online_Widget extends WP_Widget {
 		 * Filters the title of the Who's Online widget.
 		 *
 		 * @since BuddyPress (1.8.0)
+		 * @since BuddyPress (2.3.0) Added 'instance' and 'id_base' to arguments passed to filter.
 		 *
-		 * @param string $value The widget title.
+		 * @param string $title    The widget title.
+		 * @param array  $instance The settings for the particular instance of the widget.
+		 * @param string $id_base  Root ID for all widgets of this type.
 		 */
-		$title = apply_filters( 'widget_title', $instance['title'] );
+		$title = apply_filters( 'widget_title', $instance['title'], $instance, $this->id_base );
 
 		echo $before_widget;
 		echo $before_title
@@ -345,10 +351,13 @@ class BP_Core_Recently_Active_Widget extends WP_Widget {
 		 * Filters the title of the Recently Active widget.
 		 *
 		 * @since BuddyPress (1.8.0)
+		 * @since BuddyPress (2.3.0) Added 'instance' and 'id_base' to arguments passed to filter.
 		 *
-		 * @param string $value The widget title.
+		 * @param string $title    The widget title.
+		 * @param array  $instance The settings for the particular instance of the widget.
+		 * @param string $id_base  Root ID for all widgets of this type.
 		 */
-		$title = apply_filters( 'widget_title', $instance['title'] );
+		$title = apply_filters( 'widget_title', $instance['title'], $instance, $this->id_base );
 
 		echo $before_widget;
 		echo $before_title
diff --git src/bp-messages/bp-messages-widgets.php src/bp-messages/bp-messages-widgets.php
index 9ca3d18..606efa2 100644
--- src/bp-messages/bp-messages-widgets.php
+++ src/bp-messages/bp-messages-widgets.php
@@ -67,10 +67,13 @@ class BP_Messages_Sitewide_Notices_Widget extends WP_Widget {
 		 * Filters the title of the Messages widget.
 		 *
 		 * @since BuddyPress (1.9.0)
+		 * @since BuddyPress (2.3.0) Added 'instance' and 'id_base' to arguments passed to filter.
 		 *
-		 * @param string $title The widget title.
+		 * @param string $title    The widget title.
+		 * @param array  $instance The settings for the particular instance of the widget.
+		 * @param string $id_base  Root ID for all widgets of this type.
 		 */
-		$title = apply_filters( 'widget_title', $title, $instance );
+		$title = apply_filters( 'widget_title', $instance['title'], $instance, $this->id_base );
 
 		echo $before_widget;
 		echo $before_title . $title . $after_title; ?>