David Fegyver's profile picture
Security researcher profile

David Fegyver

@davidfegyver Verified Elite hacker
Hungary Joined 5 years ago
Researcher metrics Updated daily
Reputation 1,405
points
Hacker power72
Hacker rate96
Research patterns

Top weaknesses

CWE-first trends, with CAPEC used when no CWE is assigned

CAPEC · Cross-Site Scripting (XSS)
5
CAPEC · Reflected XSS
4
CWE-285 · Improper Authorization
4
CAPEC · Authentication Abuse
3
CAPEC · Code Injection
3
CAPEC · Exploiting Incorrectly Configured Access Control Security Levels
3
Operator profile

About David Fegyver

👋 Hi there! I'm David, a 20 y/o tech enthusiast from Hungary

I proudly (and ethically) hacked Facebook, Niantic, Klarna, Zynga, and more! :)

Recognition vault

Achievements & Hall of Fame

6 unlocks
Bounty Hunter 2 badge Nov 2024
Achievement unlocked Bounty Hunter 2

A higher-tier milestone for consistently delivering valid, actionable vulnerability reports.

Eyewitness badge Nov 2024
Achievement unlocked Eyewitness

Earned by reporting valid vulnerabilities across multiple bug bounty programs.

Bounty Hunter badge Aug 2023
Achievement unlocked Bounty Hunter

Awarded for submitting valid vulnerability reports and helping organizations become more secure.

Supporter badge Feb 2023
Achievement unlocked Supporter

Awarded for giving back through a valid report to a program that does not offer a bounty.

Monster badge May 2022
Achievement unlocked Monster

Reserved for the top 1% of researchers who uncover the community's highest-severity vulnerabilities.

Newcomer badge May 2022
Achievement unlocked Newcomer

Thank you for joining the Hackrate bug bounty community and beginning your ethical hacking journey.

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