Coordinated and Responsible Vulnerability Disclosure Free Bug Bounty Program 289,466 coordinated disclosures
162,788 fixed vulnerabilities
231,854 websites, 17,740 VIP websites
7,705 researchers, 6,915 subscribers

n0sign4l | Security Researcher Profile


Security researcher n0sign4l has already helped fix 27 vulnerabilities.



Researcher reputation:  10

Real name:
Leonardo Porpora

About me:
I'm student at the Liceo Redi in Arezzo, I do really like cyber security since I was 15 and I'm working hard every day to make my knowledges better and better. I do research and pentesting, and nowadays these are the things that I like most. When I break into systems I get so excited, I think that beeing an Ethical Hacker is a great way to help people because it's a way to improve the security and prevent cyber criminals to have unathourized access. I'm a member of Nint.en.do hacker group.

How to contact me:
You can contact me by e-mail [email protected] or better through Signal (39) 3453289898

Experience in Application Security
1-3 years

Award / Bug Bounty I prefer:
Being a researcher is good way to help people that can't afford a PT, if you feel like giving me something more for the time I spent trying helping you, you could send me Bitcoins, Swag stuff :)

Follow me on:
Twitter

Recommendations and Acknowledgements

    21 June, 2018
     KantorStaf Admin KSP from KSP:
Very fast response, clear and precise to help our website secure and better

Please login via Twitter to add a recommendation

Awards and Achievements


Number of Secured Websites

10+ Websites
50+ Websites
500+ Websites
WEB SECURITY VETERAN
1000+ Websites

Advanced Security Research

WAF Bypasser
CSRF Master
30+ Reports
AppSec Logic Master
30+ Reports
Fastest Fix
Fix in 24 hours

Outstanding Achievements

Secured OBB
OBB Advocate
Improved OBB

Commitment to Remediate and Patch

Patch Master
55% Patched
Patch Guru
65% Patched
Patch Lord
75% Patched

Recommendations and Recognition

REPUTABLE
10+ Recommends
FAMOUS
25+ Recommends
GLOBALLY TRUSTED
50+ Recommends

Research Statistics



Total reports:212
Total reports on VIP sites:1
Total patched vulnerabilities:27
Recommendations received:1
Active since:12.06.2018

Reported Vulnerabilities

All Submissions VIP Submissions

Domain Reported Status Type
26.06.2018
unpatched
Cross Site Scripting
26.06.2018
unpatched
Cross Site Scripting
26.06.2018
unpatched
Cross Site Scripting
26.06.2018
unpatched
Cross Site Scripting
25.06.2018
unpatched
Cross Site Scripting
25.06.2018
unpatched
Cross Site Scripting
25.06.2018
unpatched
Cross Site Scripting
25.06.2018
patched
Cross Site Scripting
25.06.2018
unpatched
Cross Site Scripting
25.06.2018
unpatched
Cross Site Scripting
25.06.2018
unpatched
Cross Site Scripting
25.06.2018
unpatched
Cross Site Scripting
25.06.2018
unpatched
Cross Site Scripting
25.06.2018
unpatched
Cross Site Scripting
25.06.2018
unpatched
Cross Site Scripting
25.06.2018
unpatched
Cross Site Scripting
25.06.2018
patched
Cross Site Scripting
25.06.2018
unpatched
Cross Site Scripting
25.06.2018
unpatched
Cross Site Scripting
25.06.2018
unpatched
Cross Site Scripting

  Latest Patched

      unimi.it
    Patched on 13.11.2018
      posindonesia.co.id
    Patched on 13.11.2018
      damplips.com
    Patched on 13.11.2018
      toysrus.ca
    Patched on 13.11.2018
      alura.com.br
    Patched on 13.11.2018
      chess24.com
    Patched on 13.11.2018
      24livenewspaper.com
    Patched on 13.11.2018
      dn.no
    Patched on 13.11.2018
      pikdo.net
    Patched on 13.11.2018
      alamy.com
    Patched on 13.11.2018

  Recent Recommendations

    13 November, 2018
     ngjermundshaug:
Awesome work - you seem very skilled. Best of luck with university and career.
    13 November, 2018
     WebNet51650767:
Armin found a vulnerability on one of our websites and reported it to us. We have already fixed the vulnerability ! Many thanks
    13 November, 2018
     HoutVasthouden:
Thank you for reporting XSS issues. It's patched now.
    12 November, 2018
     kevinBaseCom:
Thank you for reporting a security issue with our website and for promptly providing the affected pages.
    12 November, 2018
     thomasgussekloo:
Thanks Thijs for reporting an open redirect bug in our website. It's fixed based on your email and information.