The following content is in the webchallenges category:

Prompt.ml - XSS Challenges writeup

escape.alf.nu - XSS Challenges writeup

Breaking the CTF framework - CSAW 2015 web 600 writeup

First Ashley Madison now Weebdate - CSAW 2015 web 500 writeup

Bypassing PHP strcmp() - CSAW 2015 web 200 writeup

Local File inclusion + File Upload = Remote Code execution - MMACTF 2015 web 300 writeup

Executing php using script tags - MMACTF 2015, Uploader, web 100 writeup

webhacking.kr - 0ldzombie challenge writeup 1

webhacking.kr - 0ldzombie challenge writeup 7

webhacking.kr - 0ldzombie challenge writeup 6

webhacking.kr - 0ldzombie challenge writeup 5

webhacking.kr - 0ldzombie challenge writeup 4