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

Platform update: please use our new authentication mechanism to securely use the Open Bug Bounty Platform.
For security researchers
Report a Vulnerability
Submit, help fixing, get kudos.
For website owners
Start a Bug Bounty
Run your bounty program for free.
1,709,227 coordinated disclosures
1,357,593 fixed vulnerabilities
1,980 bug bounty programs, 3,897 websites
46,088 researchers, 1,643 honor badges

gdattacker | Security Researcher Profile


Security researcher gdattacker has already helped fix 590 vulnerabilities.



Researcher reputation:  760

Real name:
Gaurav Kumar

About me:
Gaurav Kumar, A Security Researcher From India Who Loves To Make The Web A Safer Place For Everybody By Reporting Any Security Vulnerability I Found Online. Contact Details Mentioned Below.

PayPal & Payoneer e-mail: [email protected]
BTC Address: 3P1tao8sycwbJmCPFkueJG4ErJg8zrkxbp

Contact email:
[email protected] https://twitter.com/gdattacker https://facebook.com/drago4344 https://www.linkedin.com/in/gdattacker

Experience in Application Security
over 5 years

Award / Bug Bounty I prefer:
Paypal, Amazon card, BTC, Swags, Gifts. After all, it takes a lot of efforts and time to find Security Vulnerabilities :)

Halls of Fame:
Facebook, Google, Apple, Sony, Freelancer, United Nations Organisation, Pluralsight, Envato, Abacus, Castbox, Jet, inflectra, CodePen, FanDuel, ISC2.nl, JPmorganChase, ledger.. etc.

Follow me on:
Twitter

Ethics and Rules:
Gaurav Kumar 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

@sczid     6 November, 2020
    Twitter sczid Zentraler Informatikdienst from University of Vienna:
Dear gdattacker,

The University of Vienna would like to thank you for your valuable contribution in finding a website security issue. Your input is highly welcome and helps to raise the security level of our educational institution.

Servus and greetings from Vienna, Austria.
@TinNguy54963117     23 September, 2020
    Twitter TinNguy54963117 Tin from American Water:
Thank you for the accurate and quick response in disclosing our vulnerability. This was done in a professional and responsible manner through the bug bounty program, giving us time to remediate.
@satcharts     24 September, 2019
    Twitter satcharts Peterson :
Thank you for helping make our website more secure.

We really appreciate it. Keep up the good work!
@HRZUni_MR     17 July, 2023
    Twitter HRZUni_MR Andreas Leder from Philipps University Marburg:
Dear gdattacker,

The Philipps University Marburg would like to thank you for your valuable contribution in finding a website security issue. Your input is highly welcome and helps to raise the security level of our educational institution.

Regards from Marburg, Germany.
@cb_ximo     25 October, 2021
    Twitter cb_ximo Kino from pista3.com:
Thank you for helping to make our site more secure
@diogenesverlag     13 October, 2021
    Twitter diogenesverlag Susanne from Diogenes Verlag:
Thanks a lot for reporting this bug and thus making our site more secure.
@showmypc     11 October, 2021
    Twitter showmypc showmypc.com from ShowMyPC:
Thanks for your reporting and making our platform secure. We appreciate your work!
@giroud_francois     10 October, 2021
    Twitter giroud_francois Giroud from WebLettre:
Thanks a lot for the notification, and for the explanations that allowed us to fix the vulnerability !
@jrkok     7 April, 2021
    Twitter jrkok Security team from afstandmeten.nl:
Thanks for the notification of a specific XSS vulnerability and the detailed background information.
@macports     7 April, 2021
    Twitter macports Rainer Müller from MacPorts:
Thank you for bringing an XSS issue on our site to our attention!

Shows the first 10 recommendations. See all.

Please login via Twitter to add a recommendation

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
WEB SECURITY VETERAN
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

REPUTABLE Badge
FAMOUS Badge
GLOBALLY TRUSTED Badge
REPUTABLE
10+ Recommends
FAMOUS
25+ Recommends
GLOBALLY TRUSTED
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:1508
Total reports on VIP sites:81
Total patched vulnerabilities:590
Recommendations received:55
Active since:25.03.2019

Open Bug Bounty Certificate


Researcher Certificate

Reported Vulnerabilities

All Submissions VIP SubmissionsFeatured Submissions




No posts in blog yet










  Latest Patched

 28.03.2024 jarchi.me
 28.03.2024 auctionbidding.fcc.gov
 28.03.2024 moodle.wns.gov.il
 28.03.2024 th.adi.gov.il
 28.03.2024 montague-ma.gov
 28.03.2024 aparecida.sp.gov.br
 27.03.2024 nccupress.nccu.edu.tw
 26.03.2024 schedule.cc.nih.gov
 26.03.2024 floraargentina.edu.ar

  Latest Blog Posts

04.12.2023 by BAx99x
Unmasking the Power of Cross-Site Scripting (XSS): Types, Exploitation, Detection, and Tools
04.12.2023 by a13h1_
$1120: ATO Bug in Twitter’s
04.12.2023 by ClumsyLulz
How I found a Zero Day in W3 Schools
04.12.2023 by 24bkdoor
Hack the Web like a Pirate: Identifying Vulnerabilities with Style
04.12.2023 by 24bkdoor
Navigating the Bounty Seas with Open Bug Bounty

  Recent Recommendations

    20 March, 2024
    TechVitaverdura:
Great exchanges with this person, thank you for your help and your report
    20 March, 2024
    Mek:
He reported some vulnerabilities and oversights of security best practices on my small private project web page.
Was responsive to e-mail, unlike many other people, so yes, I can recommend him.
    20 March, 2024
    ztwo79:
We would like to thank Pooja for responsibly disclosing a Cross-Site Scripting (XSS) vulnerability in our website. Her prompt reporting and assistance in developing a fix were instrumental in ensuring the security of our users.
    16 March, 2024
    TorutheRedFox:
Thanks for the help with the XSS vulnerability. It was a quick fix.
    15 March, 2024
    adesignguy:
Reported an XSS vulnerability which was helpful and much appreciated. I have patched it now as soon as I saw the email which was forwarded onto me!