https://portswigger.net/web-security/access-control/idor It's not, by itself, de...

gooosle · 2025-01-13T07:22:18 1736752938

What safeguards? Obfuscating your IDs by... replacing them with one-to-one mapped other IDs?

mdaniel · 2025-01-14T16:16:09 1736871369

I believe one can readily agree that https://example.com/profiles/gooosle and https://example.com/profiles/mdaniel are not sequential and thus not subject to enumeration in any reasonable way. A concrete example of defense against this is: please link to the HN username of an account which has never posted

The other very common pattern is https://example.com/profiles/852c1a9a-29ae-4638-9d82-50e0d40... or its b36 encoding which are shitty for reading over the phone but otherwise definitely safe from enumeration

gooosle · 2025-01-16T17:43:13 1737049393

First of all exposing IDs and having non-enumerable IDs are completely different things.

Second, HN usernames are 100% enumerable. 'asdfgf' is an example of account which has never posted.