R3CTF 2025 Writeup

CTFTime event link: https://ctftime.org/event/2731

Writeup

• Web
  1. Silent Profit
  2. r3note (Not published yet…)

Background

• Starts: 05 July 2025, 02:00 UTC
• Ends: 07 July 2025, 02:00 UTC

R3CTF 2025 is a online jeopardy-style CTF organized by r3kapig.

Categories:

• Blockchain
• Crypto
• Forensics
• Misc
• Pwn
• Reverse
• Web

Overview

• Team: Friendly Maltese Citizens
• Team Solves: 30/43
• Individual Solves: 0/43
• Score: 22105
• Global Rank: 1/1456
• Overall Difficulty To Me: ★★★★★☆☆☆☆☆

What I've learned in this CTF

• web
  1. Silent Profit - PHP universal insecure deserialization XSS gadget
  2. r3note (Not published yet…)