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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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1,702,223 coordinated disclosures
1,382,010 fixed vulnerabilities
1,990 bug bounty programs, 3,918 websites
46,733 researchers, 1,650 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!

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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
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




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  Latest Patched

 13.04.2024 lit.am
 13.04.2024 overnewton.vic.edu.au
 13.04.2024 catalog.edu.pl
 13.04.2024 brandee.edu.vn
 12.04.2024 id.mta.gov.mv
 11.04.2024 news.tvbs.com.tw
 11.04.2024 arm.lib.sjtu.edu.cn
 10.04.2024 cyprus.gov.cy

  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

    10 April, 2024
    Mars:
Hatim uncovered a XSS bug that we were able to quickly resolve. Thanks very much for your assistance and help.
    8 April, 2024
    Panthermedia:
Thanks to the support of Hatim Chabik, we were able to identify and solve an XSS bug.
    5 April, 2024
    pubpharm:
Pooja found a XSS vulnerability on our website and provided us with the needed Information for replication and fixing the issue. Which she verified afterwards.
We thank her for the reporting and assistance.
    2 April, 2024
    genoverband:
Thank you for your invaluable help in ensuring the security of our domain and its visitors!
    20 March, 2024
    TechVitaverdura:
Great exchanges with this person, thank you for your help and your report