this post was submitted on 10 Jul 2023
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PSA: Lemmy.world has been compromised! (Edit: Multiple Instances are down) (lemmy.ml)
submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/[email protected]
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FYI!!! In case you start getting re-directed to porn sites.

Maybe the admin got hacked?

edit: lemmy.blahaj.zone has also been hacked. beehaw.org is also down, possibly intentionally by their admins until the issue is fixed.

Post discussing the point of vulnerability: https://lemmy.ml/post/1896249

Github Issue created here: https://github.com/LemmyNet/lemmy-ui/issues/1895

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[–] [email protected] 14 points 1 year ago

As for the version, my instance reports it as

0.18.1-2-ga6cc12afe

So it seems to be using some extra patches, but I can't find that commit on GitHub which indicates it might not be public, or cherry-picked locally.

So with this in mind, either it's just innocent performance patches, or someone potentially also introduced the markdown vulnerability.

Although it's also entirely possible I suck and wasn't able to reproduce it correctly/had wrong quoting or something. Hopefully the devs can shine some light in the details.