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22,373 researchers, 1296 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
Total vulnerabilities on Hold (Open Bug Bounty):4
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

 20.04.2021 avizo.me
 20.04.2021 onex.am
 20.04.2021 kaldo.am
 20.04.2021 checkchick.me
 20.04.2021 dramaqu.website
 20.04.2021 newharmony-in.gov
 20.04.2021 vietnamtourism.gov.vn
 20.04.2021 lucknow.me
 20.04.2021 namlh.me
 20.04.2021 wmsc.gov

  Latest Blog Posts

11.04.2021 by Open Bug Bounty
Better Notifications Mechanism
28.03.2021 by febin_rev
Windows Stack Buffer Overflow in a real life app — Exploit development — CloudMe_1.11.2 Buffer Overflow-CVE-2018–6892
10.02.2021 by Renzi25031469
Sysadminotaur nº88
10.02.2021 by Open Bug Bounty
Higher Submissions Quality Standard
25.12.2020 by _Y000_
How to bypass mod_security (WAF)

  Recent Recommendations

@MrMoney84315336     16 April, 2021
    Twitter MrMoney84315336:
Serious, fast and professional.Thanks for the report.
@lmanunza     15 April, 2021
    Twitter lmanunza:
The Researcher found an XSS vulnerability in our site and acted ethically by reporting it to us, so we could fix it in a timely manner. Thank you!
@studentdoctor     14 April, 2021
    Twitter studentdoctor:
Rngdr4 is an absolute professional. Very helpful in finding and helping to resolve our bug. Highly recommended! Thanks, rngdr4!
@lmanunza     13 April, 2021
    Twitter lmanunza:
Pooja found an XSS vulnerability in our website and acted ethically by reporting it to us, as well as providing all the information we needed to reproduce and fix the issue in a timely manner. Thank you very much!
@MrMoney84315336     13 April, 2021
    Twitter MrMoney84315336:
Thank you for reporting the XSS issue.
Thanks to the detailed report, we were able to fix the problem on the same day.