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1,006,104 coordinated disclosures
628,908 fixed vulnerabilities
1,348 bug bounty programs, 2,698 websites
23,362 researchers, 1,318 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 2673 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
1-3 years

Recommendations and Acknowledgements

@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!
@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 !
@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:3933
Total reports on VIP sites:632
Total patched vulnerabilities:2673
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

 21.06.2021 govtech.com
 20.06.2021 gdrfad.gov.ae
 20.06.2021 realcommercial.com.au
 20.06.2021 allofustec.nnlm.gov
 19.06.2021 getchu.com
 19.06.2021 explorelearning.com
 19.06.2021 fibre2fashion.com
 19.06.2021 tme.eu
 18.06.2021 www1.caixa.gov.br
 18.06.2021 butantan.gov.br

  Latest Blog Posts

25.05.2021 by 0xrocky
Google XSS Game
25.05.2021 by ShivanshMalik12
Testing for XSS (Cross Site Scripting)
25.05.2021 by darklotuskdb
Easy XSS On Mostly Educational Websites Via Moodle
25.04.2021 by ParanjpeSanmarg
Testing Subdomain Takeover Vulnerability
11.04.2021 by Open Bug Bounty
Better Notifications Mechanism

  Recent Recommendations

@darione90     19 June, 2021
    Twitter darione90:
Many thanks to garlet_marco for finding an XSS vulnerability on our website!
@RyanBoehm12     16 June, 2021
    Twitter RyanBoehm12:
Vighnesh Gupta was professional, considerate, and thorough in helping us resolve a security flaw on our website. He communicated with in a timely manner, and provided all necessary support to fix the issue. I highly recommend him.
@rus_cert     16 June, 2021
    Twitter rus_cert:
Thanks for informing us about the vulnerability and providing helpful details :-)
@Cyber91998806     16 June, 2021
    Twitter Cyber91998806:
He responded to my mails quickly and helped us how to fix the vulnerability in a professional way. I recommended this guy.
@contactsplus     15 June, 2021
    Twitter contactsplus:
Tuhin reported 3 valid vulnerabilities to us of severities High, Medium and Low.

He was very professional and helped us recreate the issues until we were able to verify.
He was awarded a bounty for his efforts.

Thank you Tuhin!

Contacts+ Security Team.