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555,864 coordinated disclosures
356,678 fixed vulnerabilities
845 bug bounties with 1,632 websites
17,373 researchers, 1153 honor badges

k0t Top Security Researcher of the Month | Security Researcher Profile


Security researcher k0t has already helped fix 2159 vulnerabilities.



Researcher reputation:  1920

About me:
Penetration tester & webdev.

How to contact me:
[email protected]

Experience in Application Security
over 5 years

Award / Bug Bounty I prefer:
Bug Bounty Payment, Gift Card, T-Shirts.

Recommendations and Acknowledgements

    5 August, 2020
     kkb5mobile Shinichi Ueno from Kagoshima Broadcastiong corporation:
Thank you for pointing out the vulnerability.
Thanks to you, I was able to respond safely.
    27 July, 2020
     TandyUKServers James Tandy from TandyUK Servers:
This researcher found and responsibly disclosed several XSS vulnerabilities on our clients site.
Many Thanks for helping make the web a safer place in a responsible way.
    22 July, 2020
     TandyUKServers James Tandy from TandyUK Servers:
Thank you very much for reporting the XSS vulnerability and your quick response.
    14 July, 2020
     tnyaritm Tamas from Mediashop:
Many thanks for your efforts to report the vulnerability and helped us to fix it. I recommend this researcher!
    27 June, 2020
     vmarci21 Marton :
Thank you for reporting the vulnerability!
Your report help us to improve our page security.
We are really appreciated your work.
    22 June, 2020
     PaulKLeasure1 PKLeasure from PKLeasure:
Ser found SQL injection vulnerability issues on one of the sites I work. Ser specified the issue by documenting with excellent clarity and provided the details needed to resolve the issue swiftly. Thank you Ser!
    25 May, 2020
     VICTOR__Europe Frank from VICTOR Europe GmbH:
Thank you for helping us to fix the critical SQL injection.
Friendly contact, thanks for the effort.
    18 May, 2020
     tnyaritm Tamás from Telemarketing International:
Many thanks for your efforts to find and help for fixing the vulnerability on our webshop. I recommend your skills for every website owner!
    18 May, 2020
     AnimeCons Patrick from FanCons:
Found a number of XSS issues we had open. Very helpful info!
    15 May, 2020
     CartRover William from CartRover:
Thank you very much for your detailed report and helping to make our site more secure.

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Honor Badges


Number of Secured Websites

10+ Websites
50+ Websites
500+ Websites
WEB SECURITY VETERAN
1000+ Websites

Advanced Security Research

WAF Bypasser
CSRF Master
30+ Reports
AppSec Logic Master
30+ Reports
Fastest Fix
Fix in 24 hours

Outstanding Achievements

Secured OBB
OBB Advocate
Improved OBB

Commitment to Remediate and Patch

Patch Master
55% Patched
Patch Guru
65% Patched
Patch Lord
75% Patched

Recommendations and Recognition

REPUTABLE
10+ Recommends
FAMOUS
25+ Recommends
GLOBALLY TRUSTED
50+ Recommends

Distinguished Blog Author

1 Post
3 Posts
5+ Posts

Research Statistics



Total reports:3209
Total reports on VIP sites:771
Total patched vulnerabilities:2159
Total vulnerabilities on Hold (Open Bug Bounty):32
Recommendations received:101
Active since:05.05.2016
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 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



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Reported Vulnerabilities

All Submissions VIP Submissions

Domain Reported Status Type
07.08.2020
On Hold
Cross Site Scripting
04.08.2020
On Hold
Cross Site Scripting
30.07.2020
On Hold
Cross Site Scripting
20.07.2020
On Hold
Cross Site Scripting
18.07.2020
On Hold
Cross Site Scripting
16.07.2020
On Hold
Cross Site Scripting
10.07.2020
patched
Cross Site Scripting
08.07.2020
On Hold
Cross Site Scripting
06.07.2020
On Hold
Cross Site Scripting
26.06.2020
patched
Cross Site Scripting
23.06.2020
patched
Cross Site Scripting
23.06.2020
patched
Cross Site Scripting
22.06.2020
patched
Improper Access Control 
18.06.2020
On Hold
Cross Site Scripting
18.06.2020
patched
Cross Site Scripting
17.06.2020
On Hold
Cross Site Scripting
16.06.2020
patched
Cross Site Scripting
11.06.2020
patched
Cross Site Scripting
10.06.2020
On Hold
Cross Site Scripting
10.06.2020
On Hold
Cross Site Scripting

  Latest Patched

 12.08.2020 prisguiden.no
 12.08.2020 daveramsey.com
 12.08.2020 2gis.kz
 12.08.2020 themoviedb.org
 12.08.2020 arb.ca.gov
 12.08.2020 lightningmaps.org
 12.08.2020 univ-poitiers.fr
 12.08.2020 wirtualnemedia.pl
 11.08.2020 wuzzuf.net
 11.08.2020 inmotionhosting.com

  Latest Blog Posts

24.06.2020 by Gkexamquiz
How to Find Contacts To Report Bugs & Security Vulnerabilities | Bug Bounty Tutorials 2020
24.06.2020 by 0xcrypto
Improper Access Control - Generic: Unrestricted access to any "connected pack" on docs in coda.io
04.04.2020 by Rando02355205
(Alibaba) message.alibaba.com [IDOR] - [Bug Bounty]
12.03.2020 by Rando02355205
(Paypal) www.paypal.com [CSP High Level] - [XSS Reflected] - [Bug Bounty] - [Write Up]
08.03.2020 by CybeReports
JDECO.net XSS Vulnerability| CybeReports

  Recent Recommendations

    12 August, 2020
     www_aasv_org:
Caught me having forgotten to entity-encode values when re-displaying an incomplete form submission. While the initial report was all I needed to patch, Rajash considerately provided additional detail without being asked through the openbugbounty comments.
    10 August, 2020
     msawired:
Thank you for reporting the XSS vulnerability. Your explanations were very helpful, and we were able to resolve the issue in no time.
    6 August, 2020
     Robert_CMI:
Thank you Rajesh for reporting vulnerabilities on our website, your quick and detailed response was very valuable to us!
    6 August, 2020
     StefanCink:
Thanks to @singhnitesh21 we were able to close a vulnerability on our website asap. Thank you!
    5 August, 2020
     kkb5mobile:
Thank you for pointing out the vulnerability.
Thanks to you, I was able to respond safely.