Discussions related to Infosec.pub

1218 readers

1 users here now

founded 2 years ago

MODERATORS

jerry

Lemmy Security Vulnerability: XSS In the Wild (sh.itjust.works)

submitted 2 years ago* (last edited 2 years ago) by henfredemars to c/infosecpub

4 comments fedilink hide all child comments

Be careful what posts you click until this is patched.

EDIT: Clarify, this server I expect is also vulnerable, hence the choice of community.

all 6 comments

sorted by: hot top controversial new old

[–] 21trillionsats 4 points 2 years ago (1 children)

Hits a 404 now on the link (sh.itjust.works link above), does anyone have a TLDR?

[–] henfredemars 9 points 2 years ago* (last edited 2 years ago)

Deleting the post might have been damage control because the disclosure was not responsible. Details are in the project GitHub, but basically it's possible to trick Lemmy into serving injected JavaScript by making a post with a crafted URL.

This could allow a user to compromise the accounts of other users if you can get them to click on your post.

[–] br3ad 4 points 2 years ago

Looks like there are other potential vulnerabilities which makes this issue worse. Possibly CSRF? https://github.com/LemmyNet/lemmy/issues/3505

[–] Vashtea@sh.itjust.works 1 points 2 years ago

I use "top day" when this happens to me.(jerboa)