VestaCP/web/list/backup/index.php

<?php
error_reporting(NULL);
$TAB = 'BACKUP';

// Main include
include($_SERVER['DOCUMENT_ROOT'].'/inc/main.php');

// Data & Render page
if (empty($_GET['backup'])){
    exec (VESTA_CMD."v-list-user-backups $user json", $output, $return_var);
    $data = json_decode(implode('', $output), true);
    $data = array_reverse($data,true);
    unset($output);

    render_page($user, $TAB, 'list_backup');
} else {
    exec (VESTA_CMD."v-list-user-backup $user ".escapeshellarg($_GET['backup'])." json", $output, $return_var);
    $data = json_decode(implode('', $output), true);
    $data = array_reverse($data,true);
    unset($output);

    render_page($user, $TAB, 'list_backup_detail');
}

// Back uri
$_SESSION['back'] = $_SERVER['REQUEST_URI'];