Hack This Site (HTS) HTS is a series of Hacking challanges with each increasing in difficulty and a cake at the end. Basic challenges 00. Sanity check 01. HTML Comment 02. HTTP Headers 03. Cesar cipher 04. Base64 JSON admin:false 05. SQLI 06. Permutation cipher 07. OTP Automation 08. Image optimizer SSRF 09. Double Server 10. Rev