Hard

1. Lingual

   Lingual was a Hard Web Exploitation challenge from the SVI US Cyber Open. These are my solutions for parts one and two.

   Jun 17, 2026 CTF Writeups, Web Exploitation, Hard

   • SVI US Cyber Open
   • Sandbox
   • Oracle
   • Hard

2. Vibed Intranet

   Vibed Intranet was a Hard Web Exploitation challenge from TJCTF 2026. This is the author solution for parts one and two.

   May 25, 2026 CTF Writeups, Web Exploitation, Hard

   • TJCTF 2026
   • GraphQL
   • XPath Injection
   • Log Poisoning
   • Hard

3. File Struct Exploits P2

   File Struct Exploits P2 is an explanation of how to use File Struct overwrites to gain Arbitrary Code Execution.

   Apr 21, 2026 Exploitation Notes, Binary Exploitation, Hard

   • File Structs
   • Hard

4. File Struct Exploits P1

   File Struct Exploits P1 is an explanation of how to use File Struct overwrites to gain an Arbitrary Read or Write Primitive.

   Apr 05, 2026 Exploitation Notes, Binary Exploitation, Hard

   • File Structs
   • Write Primitive
   • Read Primitive
   • Hard

5. Pizza Router

   Pizza Router was a Hard Binary Exploitation challenge from picoCTF 2026. It has around 500 user solves as of writing this.

   Mar 24, 2026 CTF Writeups, Binary Exploitation, Hard

   • picoCTF 2026
   • Heap
   • Write Primitive
   • Hard

6. FrostByte

   FrostByte was a Hard Binary Exploitation challenge from Advent of CTF 2025 (CyberStudents). It was the day 16 challenge.

   Feb 16, 2026 CTF Writeups, Binary Exploitation, Hard

   • Advent of CTF 2025
   • PLT
   • Write Primitive
   • Shellcode
   • Hard

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