Cyber Security Enthusiast | Penetration Testing

Hi, I'm Wisnandra Galang

I explore how systems break — and how to make them stronger. All the code and tools I publish here are strictly for education, security research, and defense.

view_portfolio() github →

about me

Who I Am

I'm Wisnandra Galang Revolusi Pambayun, a cybersecurity enthusiast focused on penetration testing and vulnerability research.

My journey started with curiosity — taking things apart to understand how they work. Today that curiosity drives me to build security tooling, study real-world vulnerabilities, and practice responsible disclosure.

Everything I share is for education, security research, and defense. I believe the best way to learn security is to break things safely, document the process, and help others do the same.

nameWisnandra Galang R. P.
aliaslangz337
focusPentest · Vuln Research
languagePython
github@langz337
sitelangz337.my.id
honorsTNI AD · Diskominfo DIY

portfolio

Projects & Research

Python

rev-ip

Reverse IP lookup tool — discover other domains sharing the same host IP during reconnaissance.

view repo →
Python

grabber-id

Domain grabber for .id TLD — enumeration and collection of Indonesian domains for security research.

view repo →
Python

CVE-2026-14281

Documentation and proof-of-concept for CVE-2026-14281, published through responsible disclosure.

view repo →
Python

CVE-2026-63030

Documentation and proof-of-concept for CVE-2026-63030, published through responsible disclosure.

view repo →

recognition

Hall of Appreciation

Official acknowledgments received for ethical vulnerability reporting (responsible disclosure).

Certificate of Appreciation — Pusat Siber TNI AD (Kartika CSIRT)

Security Acknowledgment — 2026

Pusat Siber TNI AD · Kartika CSIRT (PUSSIBERAD)

Recognized for working with Kartika CSIRT in coordinating vulnerability findings and reporting them ethically.

Certificate of Appreciation — Diskominfo DIY

Vulnerability Report — Reflected XSS

Diskominfo DIY · JogjaPROV CSIRT

Found and reported a Reflected XSS vulnerability on ppid.jogjaprov.go.id, contributing to better regional government cyber security.

skills

What I Work With

Penetration Testing Python Vulnerability Research Web Security Reconnaissance CVE Analysis Linux Responsible Disclosure

terminal

Feel Free to Type Something

visitor@langz337: ~/portfolio
visitor@langz337:~$
try: whoami · skills · projects · cve · contact · sudo hire-me

contact

Get In Touch

Open to security discussions, research collaboration, or just talking tech.

galanggalang8871@gmail.com GitHub LinkedIn Instagram