W3 Total Cache

[siva s]

Just today, WP Media pointed us to a high-risk XSS vulnerability in W3 Total Cache (W3TC). This was a very popular WordPress plugin that has over 1 million active installs. Although it’s a very popular plugin, it hasn’t been updated in over six months. We stopped recommending it a while back for WP Rocket, a W3 Total Cache alternative that skyrocketed in use over the past few months.
It's Help for Speed optimized, nowadays google have index speed also, so this is helpful for seo.