Some websites do use <base target="_blank"> to make links open in a new tab by default. However, this can create a vulnerability as the linked website now has

Some websites do use <base target="_blank"> to make links open in a new tab by default. However, this can create a vulnerability as the linked website now has a reference to your site through window.opener and can take the user away from your site: https://www.jitbit.com/alexblog/256-targetblank---the-most-underestimated-vulnerability-ever/ https://www.jitbit.com/alexblog/256-targetblank---the-most-u...