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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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1,647,947 coordinated disclosures
1,296,521 fixed vulnerabilities
1,895 bug bounty programs, 3,774 websites
42,012 researchers, 1,626 honor badges

KapitanTop-50 VIP Open Redirect Reporter Top Security Researcher of the Month Top VIP Security Researcher of the Month | Security Researcher Profile

Security researcher Kapitan has already helped fix 21880 vulnerabilities.

Researcher reputation:  300

Real name:

About me:
Quality Assurance Engineer, part time bug hunter, Acknowledged by Nokia, Blackberry, United Nations, Philips, BBC, Nike and many more.

Contact email:
[email protected]

Alternative Contacts:
Email : [email protected]

Halls of Fame:
Nokia, BBC, United Nations, Blackberry, Philips, Drexel University, Genymotion, Sick, SpringerNature, machinerysafety101, Deutsche Telekom AG

Recommendations and Acknowledgements

@JonSmit93366590     12 February, 2021
    Twitter JonSmit93366590 Chris from
Good find! Thank you for letting us know that site configuration was exposed!
@ZiXXiV     8 February, 2021
    Twitter ZiXXiV Bas from Freez FM:
Noticed a file exposure which shouldn't be public. Thanks for bringing this to our attention. Very well and accurate reports. A++
@ReadyTechAU     7 February, 2021
    Twitter ReadyTechAU Nick from ReadyTech:
Good communication, accurate report. Thank you!
@kozakplus     4 February, 2021
    Twitter kozakplus Козак+ from KOZAK+:
Pritam makes important work: finding vulnerabilities he give site owners detailed technical information what's wrong. Thank you very much, Security Researcher.
@EmilMajkowski     13 January, 2021
    Twitter EmilMajkowski Emil from Rentals United:
Pritam was very helpful, he explained well the issue and helped me solve it. Thank you
@ram_terrapay     8 January, 2021
    Twitter ram_terrapay Ram Sundaram from TerraPay:
Pritam was very prompt in his responses and very professional. Thank you
@Nichola40778173     7 January, 2021
    Twitter Nichola40778173 Nicholas McCarthy from Edge Products:
Pritam was a great help. He promptly sent us what the issue was and a full step by step resolution to it. Very much appreciated!
@TopMiata     7 January, 2021
    Twitter TopMiata FRK from M-Dnia:
Pritam was very helpful, he explained well the issue and helped me solving it. Thank you.
@AlsaceBiz     4 January, 2021
    Twitter AlsaceBiz Lucy Watson from KEXINO:
Pritam was responsive and courteous. He clearly outlined the issue, providing links for our tech team with the means to correct it promptly.

Thank you so much, Pritam!
@DougNix     3 January, 2021
    Twitter DougNix Doug Nix from Compliance inSight Consulting Inc.:
Kapitan was courteous and respectful at all times. He was quick to respond, and he helped to verify that the vulnerability was corrected. I was pleased with the way he handled the disclosure and resolution.

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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:24892
Total reports on VIP sites:426
Total patched vulnerabilities:21880
Recommendations received:15
Active since:18.12.2020
Top Security Researcher Awards:Gold Star Top Security Researcher of the Month
Top VIP Security Researcher Awards: Top VIP Security Researcher of the Month Top VIP Security Researcher of the Month Top VIP Security Researcher of the Week Top VIP Security Researcher of the Week

Open Bug Bounty Certificate

Researcher Certificate

Reported Vulnerabilities

All Submissions VIP Submissions

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Hack the Web like a Pirate: Identifying Vulnerabilities with Style
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  Recent Recommendations

    23 November, 2023
Grace à Hatim_cf on a pu corrigé une faille mineure de sécurité.
    22 November, 2023
On behalf of our users on one of the pages hosted at, I'd like to thank Niko for his effort in finding and responsibly reporting an XSS vuln in one of our user's sites. The XSS was quickly patched after Niko's detailed report making the web a safer place again. Thanks!
    22 November, 2023
Ronald identified an XSS vulnerability on our site which could be fixed fast. Thanks for the provided information!
    4 November, 2023
Thank you for fixing the XSS vulnerability
    13 October, 2023
I am highly recommending Sajid for web assessments and penetrating testing. Sajid was highly professional and detailed in t heir approach towards finding vulnerabilities.