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(URGENT) Lemmy has an XSS vulnerability in the sidebar (lemmy.ca)

submitted 1 year ago by [email protected] to c/[email protected]

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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.

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[-] [email protected] 3 points 1 year ago

I mean, not in the traditional sense. You don't have your family and friends as Lemmy contacts and share posts with them. It's more anonymous.

this post was submitted on 10 Jul 2023

174 points (97.8% liked)

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