During an engagement an unsecure direct object reference vulnerability was discovered that allows the extraction of highly sensitive PII. The tester is required to extract and then exfil the…

`requests.get(url)` is a valid and correct method call that performs an HTTP GET request, and would not cause an error on its own.

`req.status` is an incorrect attribute name - the correct attribute is `req.status_code` - but this AttributeError would only be reached after the request succeeds, making it a secondary issue and not the root cause.

The line `url += i` attempts to concatenate a string (url) with an integer (i from a numeric range), which raises a `TypeError: can only concatenate str (not 'int') to str` in Python. This is a type mismatch error that occurs before the HTTP request is ever sent. The fix is to cast i to a string using `str(i)` or an f-string.