Challenges

Category Web Pwn Reverse Crypto Forensics Misc OSINT Stego Blockchain Hardware Mobile

Difficulty Beginner Easy Medium Hard Insane

CTFtime weight

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Higher weight ≈ harder, more prestigious event.

Year

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CTF

Country

Must have Source / Docker Writeup

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Challenge	CTF	Weight	Category	Has
r3chat #electron #custom-url-scheme #xdg-open #sandbox-escape	R3CTF 2026	35.95	Misc	files wu 1
Telechat #electron #rce	HeroCTF 2024	–	Web	files wu 1