TheTechNerd789Jul 10, 2023

Lemmy.world and another instance have been compromised

https://lemdro.id/post/42872

Lemmy.world and another instance have been compromised - Lemdro.id

cross-posted from: https://lemmy.ml/post/1895271 [https://lemmy.ml/post/1895271] > 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 [http://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 [https://lemmy.ml/post/1896249]

Show threadAerJul 10, 2023

Some information I have posted to Lemmy.World:

I am not a super code-literate person so bare with me on this… But. Still please becareful. There appears to be a vulnerability.

Users are posting images like the following:

imgur.com/a/RS4iAeI

And inside hidden is JavaScript code that when executed can take cookie information and send it to a URL address.

Among other things. At this time if you see an image please click the icon circled before clicking the link. DO NOT CLICK THE IMAGE. If you see anything suspicious, please report it immediately. It is better a false report than a missed one.

I have seen multiple posts by these people during the attack. It is most certainly related to JS.>>>

imgur.com

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Show threadHairypooperJul 10, 2023
Wtf how is this even possible? Are the Lemmy devs smoking crack? If you’re going to run a reddit alternative, it may be wise to sanitize the fuck out of everything posted on there.
Show threadlowleveldata
You are free to open a PR
Jul 10, 2023 at 7:03amWeb
Show threadwaltuhJul 10, 2023
Not really helpful though is it? It’s like going to a friend’s house and asking why there is a sink hole in the middle of the floor that everyone is walking around, and they say “feel free get a hammer out”.
Show threadlowleveldataJul 10, 2023
It’s more like when everyone is looking at the previously unknown hole and discussing how to patch it up and you start yelling how it is unacceptable as your friend’s house is a “bar alternative”
Show threadmadcaesarJul 10, 2023
Honestly I think you’re all right. This is such a basic vulnerability it should never existed… AND I told you so’s and bitching don’t help.