What are the resources for performing test tasks for finding vulnerabilities?

Question

PHP

Tell me, please, I saw a question here, someone asked about the security of the work of saving the picture and how to bypass it. There, someone answered that if there is a certain version of Apache, then with the help of a known hole, you can implement it through the upload form. I did not find this question, but the person in the question description wrote the name of the resource on which he performs this task.

Answer 1

Hacking puzzles: https://www.hackthebox.eu/ To register, you also need to hack registration;)

Answer 2

I found some resource, maybe it's him https://defendtheweb.net

Answer 3

keep a list of interesting sites

Answer 4

There are a lot of such resources... There are more or less popular ones: https://www.hackthis.co.uk/ , https://www.hackthissite.org/ , https://www.hellboundhackers.org , https:/ /www.root-me.org/ , https://hack.me/ , https://www.hackthebox.eu/ and others. And you can also find vulnerabilities and get paid for it: HackerOne, Bugcrowd