Welcome to lemmy.ca's c/main!
Since everyone on lemmy.ca gets subscribed here, this is the place to chat about the goings on at lemmy.ca, support-type items, suggestions, etc.
Announcements can be found at https://lemmy.ca/c/meta
For support related to this instance, use https://lemmy.ca/c/lemmy_ca_support
cross-posted from: https://sh.itjust.works/post/923025
lemmy.world is a victim of an XSS attack right now and the hacker simply injected a JavaScript redirection into the sidebar.
It appears the Lemmy backend does not escape HTML in the main sidebar. Not sure if this is also true for community sidebars.
That would essentially be patching the vulnerability. A temporary fix would be just preventing the sidebar from being editable.
(Ideally the vulnerability would be patched, but these things take time.)
At this point it doesn't seem like community sidebars have the voulnerabilty. We are fairly confident that they have identified the voulnerabilty and that lemmy.ca is safe as long as our admin accounts are properly locked down which we have confirmed.
Oh, good! That's excellent then.