We have little information currently, but we may at least lock the site down for preemptive safety reasons. There seems to be a serious XSS vulnerability within lemmys code. We have disabled community creation temporarily and are contemplating taking the site down temporarily as well. Please find us below and stay safe, ya’ll.
https://mastodon.world/@lemmynsfw https://matrix.to/#/#lemmynsfw:matrix.org
EDIT: For the time being we have disabled federation, new user sign ups, and community creation.
Thanks for the heads up! Sounds serious. Keeping fingers crossed that it will get fixed quickly.