ZipArchive is a class library in PHP used for extracting zip packages. Researchers found that when the
getFromName() methods are used in the PHP 7.x environment, specially constructed zip packages may cause a PHP program to overflow. As a result, remote attackers may start denial of service attacks or run arbitrary code.
PHP 7.0.x <= 7.0.5
Upgrade PHP to the latest version. For PHP 7.0.x users, upgrade to 7.0.6 or later.