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608,026 coordinated disclosures
391,014 fixed vulnerabilities
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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 2642 vulnerabilities.



Researcher reputation:  230

Real name:
Siruja M

How to contact me:
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:3929
Total reports on VIP sites:629
Total patched vulnerabilities:2642
Total vulnerabilities on Hold (Open Bug Bounty):1
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



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Reported Vulnerabilities

All Submissions VIP SubmissionsFeatured Submissions

Domain Reported Status Type
17.10.2020
On Hold
Cross Site Scripting
18.02.2020
unpatched
Cross Site Scripting
15.02.2020
unpatched
Cross Site Scripting
15.02.2020
unpatched
Cross Site Scripting
15.02.2020
unpatched
Cross Site Scripting
15.02.2020
unpatched
Cross Site Scripting
15.02.2020
unpatched
Cross Site Scripting
15.02.2020
patched
Cross Site Scripting
15.02.2020
unpatched
Cross Site Scripting
15.02.2020
patched
Cross Site Scripting
14.02.2020
patched
Cross Site Scripting
10.02.2020
patched
Cross Site Scripting
10.02.2020
patched
Cross Site Scripting
10.02.2020
patched
Cross Site Scripting
10.02.2020
unpatched
Cross Site Scripting
09.02.2020
unpatched
Cross Site Scripting
08.02.2020
unpatched
Cross Site Scripting
08.02.2020
unpatched
Cross Site Scripting
08.02.2020
unpatched
Open Redirect
08.02.2020
unpatched
Cross Site Scripting

  Latest Patched

 26.10.2020 xfinity.com
 26.10.2020 vccircle.com
 25.10.2020 ranker.com
 25.10.2020 usp.br
 25.10.2020 belezanaweb.com.br
 25.10.2020 procempa.com.br
 23.10.2020 untappd.com
 23.10.2020 petmd.com
 23.10.2020 dafont.com
 23.10.2020 skylum.com

  Latest Blog Posts

05.10.2020 by _r00t1ng_
Steal IP Address using Image
05.10.2020 by _r00t1ng_
DDOS Using SQL injection (SiDDOS)
05.10.2020 by _r00t1ng_
XSS Injection with SQLi
14.09.2020 by aninda_anon
VPS Cheatsheet for bug hunting
14.09.2020 by pk_12397
A Story of IDOR To Account Takeover

  Recent Recommendations

@mako_o9999     23 October, 2020
    Twitter mako_o9999:
Gdattacker found a XSS problem on one of our websites and reported to us. We were able to solve the problem quickly. Thank you so much!
@BizzdoD     21 October, 2020
    Twitter BizzdoD:
Many thanks to Sithu for bringing a XSS vulnerability on our site to our attention. He was very courteous in communications and helped verify that our patch solved the problem properly. Thank you Sir for helping making the Internet a safer place.
@vadus     19 October, 2020
    Twitter vadus:
Warbid helped disclose several vulnerabilities on our website. With his help, we were able to patch this issue and close up the vulnerability. Thank you very much for your help, and thank you for helping to make the web a safer place.
@pagel     18 October, 2020
    Twitter pagel:
Many thanks to cyberaz0r for pointing out a css vulnerability on our site. He was very pleasant to deal with and shared his knowledge openly.
@amswebs     16 October, 2020
    Twitter amswebs:
Thank you for your help with this XSS vulnerability. We appreciate the responsible reporting via openbugbounty.