I reported security issues to Mintlify back when they used Discord for support. Gave recreation steps. Never got any feedback that looked to me like they were looking into it.
I reported similar issues to what's described in May 2023.
The vulnerability issue that you reported, if I recall correctly, was relating to server-forwarding attacks via our API playground. We've addressed that issue around 8 months ago, and unfortunately, it was not the root of this incident.
I reported similar issues to what's described in May 2023.