按照题目要求设置请求头
User-Agent: CTF-Robot/1.0
Cookie: session=valid_user
Referer: https://ctf.example.com
Cookie这里要带上原来的cookie
Cookie：PHPSESSID=5e5b3975b2539c04b222717b0199486c; session=valid_user
按照关卡步骤设置最后得到flag
SIGN IN!
2026/1/27