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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 G59@lemmy.ml to c/fediverse@lemmy.ml
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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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[-] Max_P@lemmy.max-p.me 74 points 1 year ago

I tried to reproduce the exploit on my own instance and it appears that the official Docker for 0.18.1 is not vulnerable to it.

It appears that the malicious code was injected as an onload property in the markdown for taglines. I tried to reproduce in taglines, instance info, in a post with no luck: it always gets escaped properly in the <img alt="exploit here"> property as HTML entity.

lemmy.world appears to be running a git commit that is not public.

[-] Nyanix@lemmy.ca 6 points 1 year ago

Max-P doing the Lord's work

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this post was submitted on 10 Jul 2023
388 points (99.2% liked)

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