ivanblagdan

A simple plugin to disable loading of jquery-migrate on the frontend due to a XSS vulerability of jQuery Migrate 1.2.1. 
More details here: https://github.com/jquery/jquery-migrate/issues/36
It’s also one thing less to load where it counts.
Props to people in this thread: https://wordpress.org/support/topic/removing-the-default-jquery-and-migrate-from-the-header-in-last-version-of-wp?replies=6.

Disable jQuery Migrate

A simple plugin to disable loading of jquery-migrate on the frontend due to a XSS vulerability of jQuery Migrate 1.2.1.

Zach Schnackel

Get the speed benefits of loading jQuery (and jQuery Migrate) from a CDN while providing a fallback to the local version in the event the CDN is down. It also uses the same version as WordPress does – automagically, so you’re never out of sync.
<h3>Loading jQuery from cdnjs</h3>
By default, jQuery is loaded from <a href="https://developers.google.com/speed/libraries/" rel="nofollow ugc">Google</a> with jQuery Migrate being loaded from <a href="https://cdnjs.com/" rel="nofollow ugc">cdnjs</a>. If you’d like to also load jQuery from <a href="https://cdnjs.com/" rel="nofollow ugc">cdnjs</a>, add the following to <code>wp-config.php</code>
<pre><code>define('WPJP_USE_CDNJS', true);
</code></pre>

WP jQuery Plus

Loads jQuery from a CDN using the exact version as your current WordPress install

Disable jQuery Migrate vs WP jQuery Plus