2025
UMDCTF 2025 was the 9th edition of a Capture The Flag event hosted by the University of Maryland UMD -...
2024
Intigriti keeps challenging us with XSS fun time, this time with a challenge by CryptoCat. I had a great time...
corCTF is maintained by the Crusaders of Rust Team. The 2024 edition happened between 27/07/2024 and 29/07/2024. As usual, this...
2023
Intigriti brings us monthly web challenge with really interesting problems. The Challenge This challenge was mostly the same of the...
SekaiCTF is a Capture The Flag event hosted by Team Project Sekai, with some hardcore members of CTF Community. Web...
corCTF is maintained by the Crusaders of Rust Team. The 2023 edition happened between 28 and 30-JUL. This is a...
UTCTF is maintained by the Information & Systems Security Society at the University of Texas at Austin. Since I’m not...
2022
RCTF 2022 is a Jeopardy-style Online Capture The Flag Competition presented by ROIS（Researcher Of In-formation Security). The Champion Team of...
Tive o grande prazer de participar do evento de segurança BHack 2022 e ajudar na organização do CTF, incluindo a...
This is the 3rd edition of WeCTF and this is the only CTF I’m following since the begining - because...
SEETF is a cybersecurity Capture the Flag competition hosted by the Social Engineering Experts CTF team. Altough the name is...
O justCTF foi organizado pelo time just Cat The Fish e inclui as categorias mais comuns de desafios, incluindo alguns...
This was the first edition of TSJ CTF and it was great! There was a lot of hardcore Web Challenges,...
2021
The first edition of idekCTF brought some really nice and creative web challenges. We solved almost all of the web...
INTENT Security Research Summit 2021 was founded by security companies CyberArk and Checkmarx and is focused on security research. I...
Hack.lu CTF was a great surprise for me as a never heard about it before. And it’s rated 94.98! It...
ASIS CTF is a heavyweight CTF happening since 2013. The Rating weight on CTFTime for this event is currently 89.22,...
This was the second edition of the Really Awesome CTF, organized by a group of UK students, with a shared...
UIUCTF CTF is hosted by the Special interest Group for Computer Security: SIGPwny - at the University of Illinois in...
redpwnCTF 2021 is the 3rd edition of a cybersecurity competition hosted by the redpwn CTF team, with some very creative...
Hi everyone! C: After lot of months I’m posting here again! I played the WeCTF 2021(a only-web CTF) with my...
2020
Introduction This weekend FireShell wasn’t going to play CTFs, so I decided to look at the Defenit CTF by myself....
2019
Description Hello, can you reverse this object code for me ??? I would be thankfull to you. challenge.html Solution After...
Introduction This write-up is about the challenges PHP+1, PHP+1.5 and PHP+2.5, we were able to solve those three challenges with...
Introduction Let’s imagine a situation where we are analyzing some application that apparently is vulnerable to Server Side Template Injection...
Description n00b created a super secure website for sharing images. Do you think you can hack it? http://imgaccess.ctf.euristica.in Write-up When...
Description Do you know ghost pepper? Let’s eat. http://111.186.63.207:31337 Write-up Vitor B2e4gl3 started the enumeration of this challenge and was...
2018
One Frida script for two Flags ASIS 2018 Gunshop and Gunshop II challenges were about an Android app. And I...
This challenge when I got it, I did not even know its description, but I really like that kind of...
Description: do it all you need to get shell Autor: @keerok URL: http://chall.hackaflag.com.br:8664 Below, the main page of chall: Of...
This challenge is interesting, sometimes it does not seem very realistic, but if you take the side of that every...
This challenge is really silly, but what is annoying, is that he was blocking the use of the Burp Suite...
This challenge happened this weekend and I enjoyed a lot it’s solving, also got a first blood here :) At...
Convert 100 If you need to convert something to Markdown, you can try our service: http://convert.nonameconctf2018.xyz This challenge quickly illustrates...
“This search engine doesn’t look very secure. Or well coded. Or competent in any way shape or form. This should...
“Marceau Hey my friend tells me that the flag is in this site’s source code. Idk how to read that...
Home Sweet Home Looks like this site is doing some IP filtering. That’s very FORWARD thinking of them. Have fun!...
Evaluation Evaluate your life. How are you doing, and are you doing the best you can possibly do? Look deeper...
“service, to communicate with his associates. Let’s see if you can hack your way in his account… Hint: his password’s...
The following page was given by the task: Without second thoughts, it’s clear this is about an LFI so I...
a strange online reservation system for restaurants, please hacking it This challenge told us little, just said it was to...
This challenge sent to the following page: When I tried to login, the page returned a message that the dashboard...
This challenge sent us to the following page: After a few attempts at the index.php?file, I opened the source code...
Description http://neverlanctf-challenges-elb-2146429546.us-west-2.elb.amazonaws.com:14098/ 1.A little recon in case you don’t know who is “cookie monster” Google search “cookie monster” It’s a...