Infosec Institute

Open Bug Bounty mentioned in the
Top 6 Bug Bounty programs of
2022 by the InfoSec Institute

The Hacker News

Open Bug Bounty named among the
Top 5 Bug Bounty programs of 2021
by The Hacker News

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1,491,101 coordinated disclosures
1,172,090 fixed vulnerabilities
1,769 bug bounty programs, 3,499 websites
35,514 researchers, 1,571 honor badges

Renzi Top VIP Security Researcher of the Month | Security Researcher Profile

Security researcher Renzi has already helped fix 7680 vulnerabilities.

Researcher reputation:  570

Real name:
Felipe Gabriel Renzi

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

Note: Please, if you fixed vulnerability, don't forget to give me recommendations in my OBB Profile.

Contact email:
-> 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).
-> Vouchers (eg. Amazon Brazil)

Halls of Fame:
SoundCloud, Western Union, Alibaba, T-mobile, Telefonica, Tim, Huawei, Skyscanner, Jet, MasterCard, Wp Engine, Indeed, Costant Contact, Engel & Volkers Technology GmbH, U.S. Dept Of Defense, MTN and..

Follow me on:

Ethics and Rules:
Felipe Gabriel Renzi is required to abide by the ethics and rules of the Open Bug Bounty project. If you reasonably believe that rules are not respected, please report this to us.

Recommendations and Acknowledgements

@antonyranger     2 February, 2021
    Twitter antonyranger Antony from Acquire:
Thanks Felipe for bringing this XSS vulnerability to our attention in a timely and professional manner.
@ukegawa     24 September, 2019
    Twitter ukegawa ukegawa from kurogo:
Thank you for the report! We appreciate it.
@AndyTrier     2 May, 2019
    Twitter 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.
@KoegelGmbH     30 April, 2019
    Twitter 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!
@artinberlin     25 April, 2019
    Twitter 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.
@buerofuenf     23 April, 2019
    Twitter 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.
@matthias_lueck     15 April, 2019
    Twitter 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!
@Majestic     22 January, 2019
    Twitter Majestic Philip Aggrey from Majestic:
Following Felipe's disclosure, we have now fixed the Reflected Cross-Site Scripting web vulnerability you discovered in our "" web-application. We'd like to thank Felipe for his prompt and professional disclosure.
@DJB31st     22 January, 2019
    Twitter DJB31st Dave Beaumont :
Found a xss issue, quickly emailed with the affected pages and links to aid resolving. Many thanks
@jddimarco     2 November, 2018
    Twitter 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.

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Honor Badges

Number of Secured Websites

10+ Secured Websites Badge
50+ Secured Websites Badge
500+ Secured Websites Badge
Web Security Veteran Badge
10+ Websites
50+ Websites
500+ Websites
1000+ Websites

Advanced Security Research

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

Outstanding Achievements

Secured OBB Badge
OBB Advocate Badge
Improved OBB Badge
Secured OBB
OBB Advocate
Improved OBB

Commitment to Remediate and Patch

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

Recommendations and Recognition

10+ Recommends
25+ Recommends
50+ Recommends

Distinguished Blog Author

Distinguished Blog Author Badge
Distinguished Blog Author Badge
Distinguished Blog Author Badge
1 Post
3 Posts
5+ Posts

Research Statistics

Total reports:16414
Total reports on VIP sites:49
Total patched vulnerabilities:7680
Recommendations received:37
Active since:31.05.2018
Top Security Researcher Awards:Gold Star Top Security Researcher of the Month

Open Bug Bounty Certificate

Researcher Certificate

Reported Vulnerabilities

All Submissions VIP Submissions

10.02.2021  Sysadminotaur nº88

01.10.2019  #Security 100%

13.08.2019  XSSCon - XSS Tool @Kitploit

Powerfull Simple XSSScanner made with python 3.7



01.05.2019  1000's of default passwords on

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. "

  Latest Patched


  Latest Blog Posts

16.01.2023 by itsvarmakollu
XSS vulnerabilities discovered in ServiceNow - CVE-2022-38463
16.01.2023 by itsvarmakollu
Turning cookie-based XSS into account takeover
08.07.2022 by 4websecurity
CVE 2022-29455 is still affecting millions of Wordpress sites
08.07.2022 by kh4sh3i_
Zabbix - SAML SSO Authentication Bypass
08.07.2022 by FR13ND0x7F
The Time Machine — Weaponizing WaybackUrls for Recon, BugBounties , OSINT, Sensitive Endpoints and what not

  Recent Recommendations

@DelganGeor63536     26 May, 2023
    Twitter DelganGeor63536:
navreet1425 was professional in his vulnerability disclosure.I really appreciates his work.
@Harpree66584431     26 May, 2023
    Twitter Harpree66584431:
Thank you for finding vulnerability in our website
@MinasPergantis     23 May, 2023
    Twitter MinasPergantis:
Thank you for your help in ensuring the security of our domain and its visitors! Your contributions are invaluable.
@franky1302     17 May, 2023
    Twitter franky1302:
Thanks Khan Janny for letting us know and fix the issue.
@BenjaminSponsor     11 May, 2023
    Twitter BenjaminSponsor:
Thanks for making me aware Alex!