Coordinated and Responsible Vulnerability Disclosure Free Bug Bounty Program 391,905 coordinated disclosures
222,701 fixed vulnerabilities
538 bug bounties with 1056 websites
10,798 researchers, 919 honor badges

Renzi | Security Researcher Profile


Security researcher Renzi has already helped fix 1041 vulnerabilities.



Researcher reputation:  300

Real name:
Felipe Gabriel Renzi

About me:
-> Cyber Security Analyst and Security Researcher (Brazil).
-> We can make Web a Safer Place.

How to contact me:
-> E-mail: [email protected]
-> Contact me as soon as possible to protect your web application!

Certifications & Diplomas:
-> Forest Engineering - UNESP
-> Information Security - SENAC

Experience in Application Security
over 5 years

Award / Bug Bounty I prefer:
-> Bounty Payment (PayPal).
-> Public Recognition & thanks (Here).
-> Swag (T-shirt, stickers, cups).
-> Job Offer (Pentest or Vulnerability Assessment Project).
-> Vouchers (eg. Amazon Brazil)

Halls of Fame:
SoundCloud, Western Union, Alibaba, T-mobile, Telefonica, Huawei, Skyscanner and Jet.

Follow me on:
Twitter

Recommendations and Acknowledgements

    2 May, 2019
     AndyTrier Andreas from Trier-Saarburg:
Felipe found a XSS flaw in one of our web pages, and kindly told us about it so that we could address it. We'd like to thank Felipe for his prompt and professional disclosure.
    30 April, 2019
     KoegelGmbH Daniel from Kögel:
Felipe kindly pointed out an XSS problem to us. Thanks to his support, we were able to solve the problem quickly.
Thank you very much Felipe, your help is highly appreciated!
    25 April, 2019
     artinberlin Christoph Thomessen from Kuag:
Felipe fand einen XSS Fehler in einer unserer Web-Seiten und gab uns Tipps für ein sicheres Internet. Vielen Dank.
    23 April, 2019
     buerofuenf Jens from Büro 5 GmbH:
Felipe found a XSS security vulnerability in one of our customers site. We fixed it accordingly. He was very fast in answering and very supportive. Thank you very much, your help is highly appreciated! We will keep you in mind for future security checks on other websites.
    15 April, 2019
     matthias_lueck Matthias Lück from Brinkmann Audio:
Felipe found a vulnerability in our website , which we were able to fix with Felipes detailed report. He was very responsive and professional. Highly recommended!
Thank you very much Felipe!
    22 January, 2019
     Majestic Philip Aggrey from Majestic:
Following Felipe's disclosure, we have now fixed the Reflected Cross-Site Scripting web vulnerability you discovered in our "www.majestic12.co.uk" web-application. We'd like to thank Felipe for his prompt and professional disclosure.
    22 January, 2019
     DJB31st Dave Beaumont :
Found a xss issue, quickly emailed with the affected pages and links to aid resolving. Many thanks
    2 November, 2018
     jddimarco John DiMarco from University of Toronto Computer Science Dept:
Felipe found a XSS flaw in one of our researchers' web pages, and kindly told us about it so that we could address it. Thank you, Felipe.
    17 July, 2019
     DarrenSproats Darren from Ironcore:
Felipe found a vulnerability on two of our websites , which we were able to fix with his detailed instructions. Thanks for your help, Felipe! Highly recommended.
    17 July, 2019
     batavlz batavlz from VLI Z:
Thanks for reporting a security issue, much appreciated.

Shows the first 10 recommendations. See all.

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Honor Badges


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

Distinguished Blog Author

1 Post
3 Posts
5+ Posts

Research Statistics



Total reports:6802
Total reports on VIP sites:4
Total patched vulnerabilities:1041
Total vulnerabilities on Hold (Open Bug Bounty):5501
Recommendations received:20
Active since:31.05.2018

Open Bug Bounty Certificate



01.05.2019  1000's of default passwords on http://open-sez.me

01.05.2019  Fuxploider - @almandin

" Fuxploider is an open source penetration testing tool that automates the process of detecting and exploiting file upload forms flaws. This tool is able to detect the file types allowed to be uploaded and is able to detect which technique will work best to upload web shells or any malicious file on the desired web server. "

01.05.2019  Sysadminotaur


Reported Vulnerabilities

All Submissions VIP Submissions

Domain Reported Status Type
10.07.2019
On Hold
Cross Site Scripting
10.07.2019
On Hold
Cross Site Scripting
10.07.2019
On Hold
Cross Site Scripting
10.07.2019
On Hold
Cross Site Scripting
10.07.2019
On Hold
Cross Site Scripting
10.07.2019
On Hold
Cross Site Scripting
10.07.2019
On Hold
Cross Site Scripting
10.07.2019
On Hold
Cross Site Scripting
10.07.2019
On Hold
Cross Site Scripting
10.07.2019
On Hold
Cross Site Scripting
10.07.2019
On Hold
Cross Site Scripting
10.07.2019
On Hold
Cross Site Scripting
10.07.2019
On Hold
Cross Site Scripting
10.07.2019
On Hold
Cross Site Scripting
10.07.2019
On Hold
Cross Site Scripting
10.07.2019
On Hold
Cross Site Scripting
10.07.2019
On Hold
Cross Site Scripting
10.07.2019
On Hold
Cross Site Scripting
10.07.2019
On Hold
Cross Site Scripting
10.07.2019
On Hold
Cross Site Scripting

  Latest Patched

 20.07.2019 realsimple.com
 20.07.2019 mibebeyyo.com
 20.07.2019 trulia.com
 20.07.2019 job-hunt.org
 20.07.2019 flexjobs.com
 20.07.2019 bricoprive.com
 20.07.2019 backingtrackx.com
 20.07.2019 shape.com
 20.07.2019 cookinglight.com
 20.07.2019 foodandwine.com

  Latest Blog Posts

12.06.2019 by Open Bug Bounty
Open Bug Bounty pursues a steady growth in 2019 with over 212,148 fixed vulnerabilities
27.05.2019 by fakessh
bing openredirect
20.05.2019 by fakessh
Hitachi Incident Response Team (HIRT)
11.05.2019 by MAS00712
Footprinting and Reconnaissance with DIRB Tool (For Security Researcher and Bug Bounty Hunters)
01.05.2019 by Renzi25031469
1000's of default passwords on http://open-sez.me

  Recent Recommendations

    20 July, 2019
     IbassoI:
Thanks for the vulnerability report! The report was responsible and detailed enough to let us quickly verify and diagnose the issue, understand its impact, and fix it quickly. Ayan was reacting in lightning speed once I contacted him. He explained the issue to me very clear and provided a comprehensive amount of possible solutions. This was really great service, thanks so much!
    19 July, 2019
     nitrc_info:
Thanks for the vulnerability report! The report was responsible (private and without exploiting the vulnerability) and detailed enough to let us quickly verify and diagnose the issue, understand its impact, and fix it quickly.
    19 July, 2019
     nitrc_info:
Thank you for the report with proof of concept!
    19 July, 2019
     Geddo2k:
Thanks abdelhak for the xss- and CSRF-hint on our website! appreciate it.
    19 July, 2019
     AndyTrier:
He found the next bug on our Website! THANK YOU
Professional help, great work!