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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)

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UMassCTF2026-BrOWSER BOSS FIGHT CVE-2026-57408 - Peach Payments Gateway Payment Status Forgery via Unauthenticated Webhook GPNCTF2026-cookoff CVE-2026-54804 - Melhor Envio Subscriber API Token Disclosure and Overwrite GPNCTF2026-recipeloader

UMassCTF 2026 (3 challenges)

UMassCTF 2026

UMassCTF2026-Brick by Brick

CTF writeup - Brick by Brick (UMassCTF 2026)

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UMassCTF 2026

UMassCTF2026-BrOWSER BOSS FIGHT

CTF writeup - BrOWSER BOSS FIGHT (UMassCTF 2026)

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CTF Web UMassCTF
UMassCTF 2026

UMassCTF2026-ORDER66

CTF writeup - ORDER66 (UMassCTF 2026)

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CTF Web UMassCTF
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

CVE-2026-78259 - WPLegalPages API Secret Disclosure and Account Disconnect via Unauthenticated REST API LEMON MELON COOKIE TJCTF2026-web/free-cloud-storage CVE-2026-57365 - Stored XSS in reCAPTCHA for Asgaros Forum via Site Key GPNCTF2026-cookoff
10 CVE 31 CTF writeups 41 posts
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