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HieuPenguinnn

CVE & CTF writeups by HieuPenguinnn

41

Posts

10

CVE

31

CTF

Categories

├── CVE (10) │ ├── Broken Access Control (6) │ ├── Information Disclosure (2) │ ├── IDOR (2) │ ├── Webhook Forgery (2) │ ├── SQL Injection (1) │ ├── Payment Bypass (1) │ ├── Stored XSS (1) │ ├── Price Tampering (1) │ └── Account Takeover (1) └── CTF (31) ├── GPNCTF 2026 (8) ├── PTITCTF Quals 2026 (7) ├── TJCTF 2026 (6) ├── UMassCTF 2026 (3) ├── UTCTF 2026 (3) ├── OmniCTF 2026 (2) └── SekaiCTF 2026 (2)

Random Picks

UMassCTF2026-Brick by Brick TJCTF2026-web/paper-trail UTCTF2026-Time to Pretend Độ Mixi UMassCTF2026-BrOWSER BOSS FIGHT

Tag: TJCTF (6 posts)

TJCTF2026-web/chained

TJCTF2026-web/chained

CTF writeup - web/chained (TJCTF 2026)

TJCTF2026-web/free-cloud-storage

TJCTF2026-web/free-cloud-storage

CTF writeup - web/free-cloud-storage (TJCTF 2026)

TJCTF2026-web/paper-trail

TJCTF2026-web/paper-trail

CTF writeup - web/paper-trail (TJCTF 2026)

TJCTF2026-web/treasure-hunt

TJCTF2026-web/treasure-hunt

CTF writeup - web/treasure-hunt (TJCTF 2026)

TJCTF2026-web/Vibed Intranet Part 1&2

TJCTF2026-web/Vibed Intranet Part 1&2

CTF writeup - web/Vibed Intranet Part 1&2 (TJCTF 2026)

TJCTF2026-web/vibecoded

TJCTF2026-web/vibecoded

CTF writeup - web/vibecoded (TJCTF 2026)

HieuPenguinnn

CVE & CTF writeups by HieuPenguinnn

41

Posts

10

CVE

31

CTF

Categories

├── CVE (10) │ ├── Broken Access Control (6) │ ├── Information Disclosure (2) │ ├── IDOR (2) │ ├── Webhook Forgery (2) │ ├── SQL Injection (1) │ ├── Payment Bypass (1) │ ├── Stored XSS (1) │ ├── Price Tampering (1) │ └── Account Takeover (1) └── CTF (31) ├── GPNCTF 2026 (8) ├── PTITCTF Quals 2026 (7) ├── TJCTF 2026 (6) ├── UMassCTF 2026 (3) ├── UTCTF 2026 (3) ├── OmniCTF 2026 (2) └── SekaiCTF 2026 (2)

Random Picks

UTCTF2026-Crab Mentality LEMON MELON COOKIE PTIT Portfolio Renderer SekaiCTF2026-web_<_w+ TJCTF2026-web/free-cloud-storage

10 CVE 31 CTF writeups 41 posts

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