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HieuPenguinnn

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-BrOWSER BOSS FIGHT OmniCTF2026-web/StayWild Brain Rot GPNCTF2026-Secure Secretpickle UTCTF2026-Time to Pretend

Tag: UTCTF (3 posts)

UTCTF2026-Break the Bank
UTCTF 2026

UTCTF2026-Break the Bank

CTF writeup - Break the Bank (UTCTF 2026)

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CTF Web UTCTF
UTCTF2026-Crab Mentality
UTCTF 2026

UTCTF2026-Crab Mentality

CTF writeup - Crab Mentality (UTCTF 2026)

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CTF Web UTCTF
UTCTF2026-Time to Pretend
UTCTF 2026

UTCTF2026-Time to Pretend

CTF writeup - Time to Pretend (UTCTF 2026)

Read
CTF Web UTCTF
HieuPenguinnn

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

OmniCTF2026-web/StayWild GPNCTF2026-restaurant-builder TJCTF2026-web/paper-trail GPNCTF2026-Fancy Food Notifications TJCTF2026-web/treasure-hunt
10 CVE 31 CTF writeups 41 posts
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