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May 1
CSCG/OpenECSC 2026 ist erfolgreich abgeschlossen! 🎉 Die besten Player aus den Kategorien Junior und Senior werden nun zum Auswahl-Event eingeladen, bei dem das deutsche Team für die ECSC in Bochum bestimmt wird.
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archive of the openecsc platform: x3c.tf/archive/openecsc/open… if you like this you might wanna check out the x3ctf archive too: x3c.tf/archive/#2025 :3
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ctf frontend i made for openecsc 2025 :3
Il y a 15 ans, on supprimait des tickets de cette manière sur iPhone. Où est passé le fun des interfaces aujourd'hui ? Pourquoi l'a-t-on perdu ?
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Agreed. I've been trying to do this for all of my challenges, like my CRLF injection research turned into a CTF challenge in openECSC 2025!
Replying to @slonser_
And this makes sense given how many CTFs are held per year. However, the ideal CTF challenge, in my opinion, should follow this formula: "The author conducted a mini-research project and instead of publishing it, turned it into a challenge."
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German ECSC Qualifier (CSCG) 2026 is live (until 01.05.)! 🥳 Jump in, solve challenges, learn something new, and climb the scoreboard. This year CSCG also serves as the OpenECSC for ECSC 2026 Germany. Everyone is welcome to join! play.cscg.live/

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Mar 1
CSCG 2026 is live (until 01.05.)! 🥳 Jump in, solve challenges, learn something new, and climb the scoreboard. This year CSCG also serves as the OpenECSC for ECSC 2026 Germany. @ECSC_openECSC play.cscg.live/

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Top3 @ OpenECSC this year :)
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3 Oct 2025
btw, if you like cool web challs, now's your last chance to play my `kittychat-secure` chall at openecsc 2025! it's still running until the end of sunday have fun!!
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oh wait it's the openecsc scoreboard, realized i have seen this! almost forgot about the whole thing even though i started it already. guess i'll just look at the code!
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29 Sep 2025
openECSC 2025 has begun! Come practice your hacking skills in this week-long individual cybersecurity competition, open to everyone. openec.sc/
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I placed in the top 3 in the openECSC 2025 best write-up contest for my GoSweeper (XS-Leaks) challenge breakdown. Deep dive into admin-bot hijacking, blind redirects, and browser side-channel oracles. Check it out: rajnikantdhardwivedi-mu.verc…

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1 Oct 2024
Our very own @markx86 recently published the writeup of xv6 homework, a great kernel challenge by the OpenECSC team. Read it here on our blog: havce.it/writeups/openecsc24…

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20 Sep 2024
📣 #openECSC 2024 - Final Round! 🚩 Less than a day to #openECSC 2024 - Final Round! 🗓️ 21 Sep. 2024, 10:00 UTC - 22 Sep. 2024, 10:00 UTC 👉 Registration open @ open.ecsc2024.it 🇮🇹 Winner of the round will be invited to #ECSC in Italy! #cybersecurity #ECSC2024 #CTF
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13 Sep 2024
Defeating VM obfuscation using symbolic execution (fsvm from openECSC 2024) blog.deobfuscate.io/using-sy… #infosec #reverseengineering
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27 May 2024
Exploiting V8 at openECSC: A beginner-friendly journey from a memory corruption to a browser pwn lyra.horse/blog/2024/05/expl…

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20 May 2024
had lots of fun at the openecsc round 3 ctf! i'm gonna do a write up / blog post of at least one of the challenges i solved, which one would you like to see?
64% v8 (chrome) exploitation
36% php w/weird html parsing
45 votes • Final results
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17 May 2024
bruh i lost power right when i was about to do openecsc
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15 May 2024
If you enjoy pwning stuff and are feeling bored this week go check out openECSC round 3, currently running with some pretty cool challenges. Guess which one I wrote 🤔

🆕3rd and last batch of challs for #openECSC - Round 3 is now live! ⏰ Play on open.ecsc2024.it until 19 May 2024, 22:00 UTC 🎲 Misc: eotp 🌐 Web: Notes 📈 Crypto: LazyDH 🔃 Rev: Cop 💣 Pwn: Array.xor #ECSC #openECSC2024 #ECSC2024 #CTF #cybersecurity
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🆕3rd and last batch of challs for #openECSC - Round 3 is now live! ⏰ Play on open.ecsc2024.it until 19 May 2024, 22:00 UTC 🎲 Misc: eotp 🌐 Web: Notes 📈 Crypto: LazyDH 🔃 Rev: Cop 💣 Pwn: Array.xor #ECSC #openECSC2024 #ECSC2024 #CTF #cybersecurity
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