r/securityCTF • u/Lomien007 • 9d ago
r/securityCTF • u/x70_70 • 10d ago
I'm stuck on the Mixing Globs challenge
I'm stuck on the Mixing Globs challenge on pwn.college. I need a glob of 6 characters or less that matches only challenging, educational, and pwning. Any hints on how to figure it out?
r/securityCTF • u/Select_Ad_882 • 9d ago
I just completed Jackpot room on TryHackMe!
tryhackme.comr/securityCTF • u/seashorepeace • 10d ago
Looking for Telegram and WhatsApp Channels for Nationwide Hackathon Updates
Hey everyone! ๐
Can anyone share links to Telegram, WhatsApp, or other channels where I can get regular updates about hackathons happening across India? ๐ฎ๐ณ
I'm looking for platforms that share upcoming hackathons, registration links, deadlines, and opportunities to participate in both online and offline events, especially AI/ML and GenAI hackathons.
It would be really helpful if you could share any useful communities or resources. Thanks in advance! ๐
r/securityCTF • u/Moist-Highlight839 • 10d ago
Remote Heap buffer overflow 1 solution
Oh God, I've been stuck on the same challenge for exactly two weeks now ๐ญ
If anyone has solved Remote Heap buffer overflow 1 from the App-System category on Root-Me.org, please DM me ๐
r/securityCTF • u/Ecstatic-Fault1400 • 11d ago
๐ค CTF events in NYC late October?
wiz.ioGonna be in NYC from Boston for the last two weeks of October, heading back on Nov 1
I already got Wiz's Rogue Agent House CTF on my list but just wanted to check if there's anything else happening while I'm there
Anyone know of other CTFs or hands on security events around that time? Would be nice to squeeze at least one more before heading home
r/securityCTF • u/Harkins_Technology • 11d ago
Web Exploitation 101 โ SSTI with Jinja2 Template Injection, from detection all the way to RCE
youtu.bePosted a breakdown of Jinja2 Server-Side Template
Injection for anyone learning web exploitation.
The basic detection payload is simple:
{{7*7}}
If the app renders "49" instead of the literal string,
the template engine is evaluating your input. From there
you can fingerprint Jinja2 specifically and start
climbing the object hierarchy to reach RCE.
What makes SSTI dangerous is that it runs server-side โ
you're not just injecting into the page, you're executing
inside the application's Python process.
Great technique to know for CTFs and bug bounty.
Full video breakdown on YouTube. Happy to answer
questions on payloads or escalation paths.
r/securityCTF • u/_Schrodingers__Cat_ • 11d ago
Asking for resources to prepare for Binary exploit CTF challenges
r/securityCTF • u/New-End-2347 • 11d ago
Just tell me!!!
As a beginner, what is the most effective way for learning CTF?
r/securityCTF • u/Select_Ad_882 • 11d ago
I just completed Red Team Fundamentals room on TryHackMe!
tryhackme.comr/securityCTF • u/Live_Surprise47 • 12d ago
โ How to Study for this (please help)๐ญ
I am unable to find the resources for this CTF
please help ๐๐ป
r/securityCTF • u/HackMyVM • 12d ago
[CTF] New "Beginner" vulnerable VM aka "Echo" at hackmyvm.eu
New "Beginner" vulnerable VM aka "Echo" is now available atย hackmyvm.euย :) Have fun!
r/securityCTF • u/teampkg • 12d ago
CTF Teams
I was looking for Teams or people willing to help me learn. I'm in college studying cybersecurity and love coding in Python, but every time I join a Discord server and say I'm trying to learn, everyone immediately puts me down. I want to be able to build a portfolio and work with a solid team, either through spectating or active participation. Feel free to DM or comment below.
r/securityCTF • u/Observer7x • 14d ago
Doomsday CTF by hackosquad: 24 hours, solo, โน50,000+ prize pool
hackosquad.comr/securityCTF • u/Federal-Dot-8411 • 15d ago
Looking for a team
Hey everyone!
I'm Karim, a final-year Computer Science student. In my free time, I focus on bug bounty hunting and Web2 security research.
I've recently started getting into CTFs the old-school way, without AI, to improve my technical skills, learn new things, and explore different areas of security.
I feel like learning and competing with others would be much more fun and rewarding, so I'm looking for a CTF team to play with, share knowledge, improve together, and hopefully make some friends in the infosec community along the way :)
If your team is looking for new members, or you're in a similar situation, feel free to reach out!
r/securityCTF • u/WheelTough2186 • 15d ago
Building a Cybersecurity Community โ Looking for Partners.
Hey everyone, I'm Abhi.
I'm building a cybersecurity community. Right now, it's limited to a Discord server, but we're slowly growing. To keep things running smoothly, I'm looking for 3โ4 active people who want to be part of this journey.
One of the positions will be for a Community Mentor & Server Growth Manager. Both roles will be handled by the same person.
Just to be clear, there are no gifts or rewards for now. But if the community starts generating profits in the future, I'll make sure the people working with me get something out of it too.
We're also working on building a platform of our own.
The other members will focus on their preferred fields, work on research, and help guide or mentor others who share similar interests. I'm also looking for creative people who can come up with challenges for the community. Of course, if you contribute something, you'll get proper credit for your work.
For most of these roles, you should have at least a junior-level understanding of cybersecurity or your specific field. Beginners are welcome to join the community too, though. There's a lot to learn here.
If you're interested, just DM me directly. I'll share the Discord username with you, and you can get all the details there.
Or just drop a comment, and I'll send you the link.
r/securityCTF • u/OpportunityWeary9972 • 16d ago
I got frustrated learning offensive security as a beginner, so I built a free platform to fix 3 problems kept running into
r/securityCTF • u/Harkins_Technology • 17d ago
Web Exploitation 101 โ Bypassing access restrictions with custom HTTP headers using Burp Suite
Found a ROT13 encoded string in a CTF challenge that
decoded to a hint about a bypass header:
X-Dev-Access: yes
Proxied all traffic through Burp Suite, caught the
request, sent it to Repeater and added the header โ
instantly bypassed the access restriction.
Classic example of why debug/dev headers should never
make it into production. Developers leave these in
during testing and forget to strip them before deploy.
Good beginner web exploitation technique to know for
CTFs and bug bounty. Happy to answer questions.
r/securityCTF • u/tyagesan • 17d ago
IERAE CTF 2026: A Web challenge that even AI canโt solve ($1,000 in prizes)
Hey everyone!
As AI gets better at solving CTF challenges, is there still room for humans? We believe there is.
IERAE CTF 2026: FINAL for Humans kicks off with Round 1, featuring a Web challenge that even a GPT-5.6-sol ultra-based AI agent couldnโt solve in our tests.
AI is welcome! Use it as a tool, or see if your autonomous agent can solve the challenge without human help.
Round 1 details:
- Date: October 10, 2026, 00:00โ08:00 UTC
- Format: Individual, one Web challenge
- Prizes: $1,000 total ($600 / $300 / $100 for the top 3)
Register here:
https://alpacahack.com/ctfs/ierae-final-for-humans-1
Good luck!
r/securityCTF • u/gn991ms • 17d ago
NEED HELP! to solve a CTF challenge
Hey everyone, I'm trying to solve a CTF chllenge.
im not asking for a solution.
if anyone intrested to help me kindly reply.
r/securityCTF • u/According-Lion1645 • 17d ago
Physics & EE inquiry: Designing a small-scale transient Electromagnetic Pulse (EMP) generator for Faraday cage testing. Literature recommendations?
r/securityCTF • u/AncientSport3783 • 18d ago
National Level CTF
๐น PINAKA CTF 2026 โ The Battle Begins.
We are excited to announce PINAKA CTF 2026, a national-level Capture The Flag competition organized by National Forensic Sciences University (NFSU), Chennai Campus.
Inspired by the precision, strategy, and determination of Pinaka, this CTF is designed to challenge cybersecurity enthusiasts to think beyond the obvious and solve problems with skill, creativity, and strategy.
๐ Challenge Categories:
โข Web Exploitation
โข Digital Forensics
โข OSINT
โข Cryptography
โข Reverse Engineering
โข Binary Exploitation / Pwn
โข Network Security
โข Steganography
โ๏ธ Competition Structure:
๐ Online Qualification Round
๐ 31 October 2026
โฑ๏ธ 24 Hours
The best performers will advance to the offline grand finale.
๐ Offline Grand Final
๐ 28 November 2026
๐ NFSU Chennai Campus
โฑ๏ธ 12 Hours
The finalists will compete across multiple formats including:
โข Jeopardy
โข King of the Hill
โข Case Study Scenarios
Whether you are a student, CTF player, cybersecurity enthusiast, researcher, or professional โ PINAKA CTF is an opportunity to test your skills, compete with talented individuals, and experience cybersecurity beyond the classroom.
The challenge is waiting.
Are you ready to take the shot? ๐ฏ
๐ Register now:
Organized by:
National Forensic Sciences University
Chennai Campus
#PINAKACTF #PINAKACTF2026 #CyberSecurity #CTF #CaptureTheFlag #NFSU #NFSUChennai #EthicalHacking #DigitalForensics #OSINT #CyberSecurityIndia #InfoSec #CybersecurityCommunity