Express (@expr3ss_) profile picture

Express

@expr3ss_

security researcher

Joined June 2022
  • Tweets91
  • Following637
  • Followers355
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Photo by Express (@expr3ss_)
woohoo!! 🎉 Congratulations @expr3ss_ , 4th place winner at Off-By-One Conference 2025 Speed Run CTF! Joel walks away with $128 prize money! Thank you @starlabs_sg , our prize money sponsor!
Image from Off-By-One Conference (@offbyoneconf)
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Quel honneur et quelle fierté d'avoir pu participer à la première cérémonie de remise des diplômes de l'@ecole2600 🤩 vendredi dernier. Bravo à @expr3ss_ qui a brillamment réalisé son alternance chez @RandoriSec et qui a maintenant complètement intégré l'équipe reverse.
Image from RandoriSec (@RandoriSec)
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Last year, @expr3ss_, one of our security researcher, was the only one to have successfully solved all the pwn challenges of the @EUCyberWeek CTF 🥇 Believe it or not: he did it again this year! 🔥🔥🔥 blog.randorisec.fr/ctf-ecw-2…
[CTF] ECW CTF 2024 - Windows challenge write-up

[CTF] ECW CTF 2024 - Windows challenge write-up

RandoriSec Offensive Security

blog.randorisec.fr
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Image from miilatoooo (@miiilato)
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Today, after working 3 years as an apprentice @expr3ss_ is joining us as a security researcher 👨‍🔬 Maybe @Ruulian_ is following the same path. He’s joining us today as a security researcher apprentice 👨‍🔬 And a month ago, Oussama joined us as a pentester 🥋 Welcome on board!
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C'est par ici pour les write-ups: blog.randorisec.fr/writeups-…
[CTF] Sthack 2024 - WU

[CTF] Sthack 2024 - WU

RandoriSec Offensive Security

blog.randorisec.fr
RandoriSec (@RandoriSec) profile pictureRandoriSec@RandoriSec28 May 2024
Cette année la conférence @sth4ck a une saveur toute particulière pour nous. Une partie de la réputation de la @sth4ck est à chercher du côté de son CTF qui a lieu à la Mairie de @Bordeaux et cette année notre équipe a remporté la première place🥇 Bravo a eux et merci aux orgas
Image from RandoriSec (@RandoriSec)
Image from RandoriSec (@RandoriSec)
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We're proud to announce that our players finished in 2nd place at the @MidnightFlag #CTF 2024 final organized by @EsnaBretagne 🥈 Congratulations also to our other two teams for their respective 10th and 15th places👏 See you next year for an even more exciting edition🔥
Image from PHREAKS 2600 (@phreaks2600)
Image from PHREAKS 2600 (@phreaks2600)
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🚄The Phreaks travel 🚄 This week, our players travel to @EPFL for the @LakeCtf final🇨🇭 Wish them luck! 🌟
Image from PHREAKS 2600 (@phreaks2600)
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Express retweeted
ENISA (@enisa_eu) profile picture
ENISA
@enisa_eu23 Feb 2024
🎉 Thrilled to share that #ENISA hosts the first bootcamp for #TeamEurope 2024! Participants get trained and compete for a seat at this year's International Cybersecurity Challenge 💻 Find out more about the ICC: europa.eu/!DTvTNK #CTF
Team Europe competitors pose at the ENISA premises in Athens

ALT Team Europe competitors pose at the ENISA premises in Athens

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Our security researcher, @expr3ss_ , got to the final round of the @EUCyberWeek CTF and finished at the first position 🥇 in the qualifying phase of both the general and student scoreboard 🔥 Here are the solutions of the challenges: randorisec.fr/ctf-ecw-2023/
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Express retweeted
ANSSI (@ANSSI_FR) profile picture
ANSSI
@ANSSI_FR24 Oct 2023
[#ECSC2023] La compétition est lancée ! 🏆 L’@ECSC_TeamFrance est prête à rivaliser avec 34 autres équipes européennes. Suivez en direct les résultats et l’évolution du classement⤵️ ecsc.eu/2023-challenge #ANSSI #Numérique #TeamFrance #CyberMois Cc @enisa_eu @openECSC
Image from ANSSI (@ANSSI_FR)
Image from ANSSI (@ANSSI_FR)
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POV: your full-chain exploit is complete
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Congrats to #BetterCallSaul for its second @PeabodyAwards win! Nobody does "outstanding creative excellence" quite like it.
Image from Better Call Saul (@BetterCallSaul)
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The Feynman Lectures on Physics, the most popular physics book ever written, are completely online. Read it here: Volume 1: feynmanlectures.caltech.edu/… Volume 2: feynmanlectures.caltech.edu/… Volume 3: feynmanlectures.caltech.edu/…
Image from Physics In History (@PhysInHistory)
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This is Cinéma 🙌🏽
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I'm glad to announce that I will present a talk at @sstic #2023 about an interesting Client-Side Desync case I found past year in Werkzeug that can be leveraged to XSS on default configurations 🔥 More information here: sstic.org/2023/programme/
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deleted this because it was a "0day" but author said it's fine so it's back - AsmBB XSS to RCE from hxp CTF 2023 (credit to great teammates) ctf.zeyu2001.com/2023/hxp-ct…
true_web_assembly | CTFs

true_web_assembly | CTFs

From XSS to RCE in AsmBB v2.9.1

ctf.zeyu2001.com
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Express retweeted
NF (@nfrealmusic) profile picture
NF
@nfrealmusic9 Mar 2023
MOTTO OUT NOW! nf.lnk.to/hope
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Le @FIC_eu à Lille c'est dans 1 mois et nous y serons ! Venez rencontrer nos experts, notre équipe commerciale et RH pour discuter de sécurité offensive. Et pour respecter la tradition on aura quelques goodies plutôt cools 🪴🛍️ #FIC2023 #cybersécurité
Image from RandoriSec (@RandoriSec)
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Pwnme est de retour en force avec une nouvelle édition nommée « 8 bits ». Qualifications : 5 au 7 mai 2023 on line Catégories : Pwn, Reverse, Crypto, Forensic, Web et Osint Finale : 12 équipes, durée de 24h à l’Ecole 2600 Pour s’inscrire -> pwnme.fr
Image from PwnMe CTF 2025 (@pwnmectf)
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