[Mis-use/Bug] How to correct wrong display of data when not showing in the editor?

Hey users!

I found some mis-use of OSM today: OpenStreetMap

I wanted to correct it in the editor but it is not showing there. Is this a bug?
How can this disinformation be removed?

I hope to find help here as this is very disturbing to see!

This is fall-out from a global vandalism attack of todays. Best do nothing.