Word Wide Flag CTF 2025
World Wide CTF 2025 Description Hack, solve, and conquer — a CTF designed to challenge minds of all levels. World Wide Flags is back this year with World Wide CTF 2025!
More Prizes, More Categories, and Much More Fun!
Url Discord Performance Summary CTFs: 20/57 Total points: 6537 Position: 24/850 Rating points: 12.510 Writeups Web & Web3 Blank Login Solidity Jail 1
L3akCTF 2025
L3akCTF 2025 Description Beginner-friendly CTF. Challenge difficulty will range from beginner to expert. 10 categories: crypto, web, rev, pwn, forensics, osint, mobile, hardware/rf, hash cracking, and misc.
Url Discord Performance Summary CTFs: 19/65 Total points: 950 Position: 201/1587 Rating points: 1.725 Writeups Hardware Beneath the Surface
CornCTF 2025
CornCTF 2025 Description A CTF by a friendly team of farmers. Includes challenges of the following categories:
Url Discord Performance Summary CTFs: 8/22 Total points: 1966 Position: 9/270 Rating points: 8.811 Writeups Crypto ECRSA Web Aeronaut Simple-chat
Ulisse CTF 2025
Ulisse CTF 2025 Description Ulisse CTF is the first edition of the annual competition hosted by the Ulisse CTF Team at the University of Bologna. Open to participants of all skill levels, it aims to provide a learning experience for everyone!
Url Discord Performance Summary CTFs: 12/29 Total points: 1923.000 Position: 11/169 Rating points: 8.533 Writeups Web Telemetry StackBank 1
K!nd4SUS CTF 2025
K!nd4SUS CTF 2025 Description K!nd4SUS CTF is a Jeopardy-style Capture-The-Flag competition created with love by the K!nd4SUS Team, from the University of Milan. The challenges topics include binary exploitation, web security, reverse engineering, web3, forensics, OSINT, cryptography, and creative miscellaneous challenges!
Url Performance Summary CTFs: 10/? Total points: 2462 Position: 16/207 Rating points: 6.059 Writeups Crypto Key in the haystack