Thread:Project:Support desk/How to insert image from other web resources?/reply

There's a configuration setting for allowing any image to be added by adding the URL, however, this creates security issues. Depending on the popularity of your wiki and the extent to which pages are edited by multiple users, it could by exploited by an attacker to get the IP addresses of users.

I recommend using this method: Using an image gallery with MediaWiki

You can modify it for use with an existing image host.