hestiacp/web/bulk/hestia/index.php

<?php
use function Hestiacp\quoteshellarg\quoteshellarg;

ob_start();

include $_SERVER["DOCUMENT_ROOT"] . "/inc/main.php";

// Check token
verify_csrf($_POST);

$pkg = $_POST["pkg"];
$action = $_POST["action"];

if ($_SESSION["userContext"] === "admin") {
	switch ($action) {
		case "update":
			$cmd = "v-update-sys-hestia";
			break;
		default:
			header("Location: /list/updates/");
			exit();
	}
	foreach ($pkg as $value) {
		$value = quoteshellarg($value);
		exec(HESTIA_CMD . $cmd . " " . $value, $output, $return_var);
	}
}

header("Location: /list/updates/");