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.

Hendy Tan

This plugin removes jQuery Migrate script (jquery-migrate.min.js or jquery-migrate.js) from your WordPress site’s <a href="https://wordpress.org/documentation/article/wordpress-glossary/#front-end" rel="ugc">front end</a> when the plugin is active. To bring back the removed jQuery Migrate script, simply deactivate this plugin.
To check whether jQuery Migrate is required in the front end, you could use the development version of jQuery Migrate (unminified version) by temporarily turning on <a href="https://wordpress.org/documentation/article/debugging-in-wordpress/#script_debug" rel="ugc">SCRIPT_DEBUG</a> mode in wp-config.php file. The development version shows warnings in the browser console when removed and/or deprecated jQuery APIs are used.
For more info about jQuery Migrate, visit <a href="https://github.com/jquery/jquery-migrate#readme" rel="nofollow ugc">here</a>.
GitHub: <a href="https://github.com/icaru12/remove-jquery-migrate" rel="nofollow ugc">https://github.com/icaru12/remove-jquery-migrate</a>

Remove jQuery Migrate

A very lightweight plugin that removes jQuery Migrate script from your WordPress site's front end.

Disable jQuery Migrate vs Remove jQuery Migrate