PHP Extensions Required Magento 2

PHP Extension curl.
PHP Extension dom.
PHP Extension iconv.
PHP Extension mcrypt.
PHP Extension simplexml.
PHP Extension spl.
PHP Extension xsl.
PHP Extension intl.
PHP Extension mbstring.
PHP Extension ctype.
PHP Extension hash.
PHP Extension openssl.
PHP Extension pdo_mysql.
PHP Extension soap.
PHP Extension zip.
PHP Extension phar.
PHP Extension xmlwriter.
PHP Extension libxml.
PHP Extension pcre.
PHP Extension gd.

Cross-Site Request Forgery

Cross-Site Request Forgery (CSRF) is an attack that forces an end user to execute unwanted actions on a web application in which they’re currently authenticated. CSRF attacks specifically target state-changing requests, not theft of data, since the attacker has no way to see the response to the forged request. With a little help of social engineering (such as sending a link via email or chat), an attacker may trick the users of a web application into executing actions of the attacker’s choosing. If the victim is a normal user, a successful CSRF attack can force the user to perform state changing requests like transferring funds, changing their email address, and so forth. If the victim is an administrative account, CSRF can compromise the entire web application.