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.
1,703,071 coordinated disclosures
1,356,483 fixed vulnerabilities
1,975 bug bounty programs, 3,891 websites
45,714 researchers, 1,643 honor badges

npuser500Top-50 VIP Open Redirect Reporter Top Security Researcher of the Month Top VIP Security Researcher of the Month | Security Researcher Profile


Security researcher npuser500 has already helped fix 3001 vulnerabilities.



Researcher reputation:  230

Real name:
Siruja M

Contact email:
Email me at [email protected] or you can DM me at @npuser500

Experience in Application Security
3-5 years

Recommendations and Acknowledgements

@drewgierach     17 October, 2016
    Twitter drewgierach Drew from Fishidy:
Thanks for the heads up. The relay was on purpose but we were not following the best practices. I appreciate the concern for our end users.
@brianlmoon     11 September, 2018
    Twitter brianlmoon Brian Moon from DealNews.com, Inc.:
Siruja responsibility reported an XSS issue on our site. He graciously communicated the issue with us to allow us to resolve it.
@rtournoy     23 July, 2018
    Twitter rtournoy Raphaël from CCSD:
Siruja provided quick and helpful information which helped us fix the issue. Thank you !
@HamRadioOutlet     17 July, 2018
    Twitter HamRadioOutlet Rich from HRO:
Excellent catch! We thought we fixed all XSS on our site but Siruja found one we missed. Even provided extra detail to test it. Thanks!
@sportovnivozy     28 June, 2018
    Twitter sportovnivozy Lukas Hak from Sportovni vozy:
Thank you for finding a bug. You helped us a lot.
@sportovnivozy     27 June, 2018
    Twitter sportovnivozy Lukas Hak from Sportovni vozy:
Thank you for finding a bug.
@MonoIsCool     10 June, 2018
    Twitter MonoIsCool HellBlazer from metal-archives.com:
Thanks for the XSS vulnerability report! It has been fixed.
@diego_borrelli     2 March, 2018
    Twitter diego_borrelli Diego Borrelli from Fanpage.it:
thank you very much for the quick and helpful informations!
@ben_braman     26 February, 2018
    Twitter ben_braman Ben from Datatap:
Thanks for locating and reporting this bug!
@ChiNangia     6 November, 2017
    Twitter ChiNangia Chi from Reppify:
Siruja, thank you for reporting the issue and being in communication with our team. Many, many thanks!

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:3942
Total reports on VIP sites:633
Total patched vulnerabilities:3001
Total vulnerabilities on Hold (Open Bug Bounty):3
Recommendations received:19
Active since:13.03.2016
Top Security Researcher Awards:Gold Star Top Security Researcher of the Month Gold Star Top Security Researcher of the Month Gold Star Top Security Researcher of the Month Gold Star Top Security Researcher of the Month Gold Star Top Security Researcher of the Month 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 Month 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 Top VIP Security Researcher of the Week Top VIP Security Researcher of the Week Top VIP Security Researcher of the Week Top VIP Security Researcher of the Week Top VIP Security Researcher of the Week Top VIP Security Researcher of the Week 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 SubmissionsFeatured Submissions




No posts in blog yet










  Latest Patched

 18.03.2024 agustiniano.edu.ar
 18.03.2024 armfox.am
 18.03.2024 delaur.am
 18.03.2024 money.udn.com
 17.03.2024 vtc.gov.tw
 17.03.2024 angra.rj.gov.br
 17.03.2024 sporthotel.am

  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

    16 March, 2024
    TorutheRedFox:
Thanks for the help with the XSS vulnerability. It was a quick fix.
    12 March, 2024
    fsousa:
Pooja found an XSS vulnerability in one of our websites and ethically reported it to us, providing all the information required for us to fix the site.
All the communication was so fast, almost real time!
We thank you very much for the time and knowledge shared with us!
    7 March, 2024
    ramram:
Reported an XSS vulnerability in our website.
    7 March, 2024
    jasongiss:
Thank you for your responsible and helpful disclosure.

We really appreciated that you followed up shortly afterwards and suggested a better implementation of our fix.

I'm very impressed with your approach - thank you!
    27 February, 2024
    GTCoSWeb:
Dipu1a helped notify us of a possible link exposure so we could remedy it quickly to avoid any issues.