ultimatemember/includes/core/um-actions-user.php

<?php
// Exit if accessed directly
if ( ! defined( 'ABSPATH' ) ) exit;


/**
 * Adds main links to a logout widget
 *
 * @param $args
 */
function um_logout_user_links( $args ) {
	?>

	<li><a href="<?php echo um_get_core_page( 'account' ); ?>"><?php _e( 'Your account', 'ultimate-member' ); ?></a></li>
	<li><a href="<?php echo esc_url( add_query_arg( 'redirect_to', UM()->permalinks()->get_current_url( true ), um_get_core_page( 'logout' ) ) ); ?>"><?php _e('Logout','ultimate-member'); ?></a></li>

	<?php
}
add_action( 'um_logout_user_links', 'um_logout_user_links', 100 );