HexBrain

X / xAI · Report #1421345

Link-shortener bypass (regression on fix for #1032610)

Validstatus
mediumseverity
$560bounty
24upvotes
12 Dec 2022disclosed

How it was found

Report #1032610, entitled

Chained open redirects and use of Ideographic Full Stop defeat Twitter's approach to blocking links

was closed as _Resolved _ about six months ago.

However, a regression on the fix for the vulnerability in question seems to have occurred, and the bug is reproducible with the exact same payload.

Impact

Refer to #1032610.

This report was disclosed publicly on HackerOne and belongs to its author and the program. See the original