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612,937 coordinated disclosures
393,471 fixed vulnerabilities
929 bug bounties with 1,869 websites
18,819 researchers, 1199 honor badges

k0tTop-50 VIP Open Redirect Reporter Top Security Researcher of the Month | Security Researcher Profile


Security researcher k0t has already helped fix 2191 vulnerabilities.



Researcher reputation:  1950

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

@lorenzoherrera     16 September, 2020
    Twitter lorenzoherrera Loren from Litmind:
k0t found an elusive XSS vulnerability in our site and provided us with a comprehensive report that allowed us to patch it. He's now in our hall of fame: https://www.litmind.com/bughunters
@mender_io     1 September, 2020
    Twitter mender_io Michael from mender.io:
k0t helped us by reporting an XSS vulnerability. We were able to fix the issue thanks to their report, their help is much appreciated!
@CPCuk     19 August, 2020
    Twitter CPCuk Rob from The CPC:
k0t helped disclose an XSS vulnerability 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.
@kkb5mobile     5 August, 2020
    Twitter kkb5mobile Shinichi Ueno from Kagoshima Broadcastiong corporation:
Thank you for pointing out the vulnerability.
Thanks to you, I was able to respond safely.
@TandyUKServers     27 July, 2020
    Twitter 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.
@TandyUKServers     22 July, 2020
    Twitter TandyUKServers James Tandy from TandyUK Servers:
Thank you very much for reporting the XSS vulnerability and your quick response.
@tnyaritm     14 July, 2020
    Twitter tnyaritm Tamas from Mediashop:
Many thanks for your efforts to report the vulnerability and helped us to fix it. I recommend this researcher!
@vmarci21     27 June, 2020
    Twitter vmarci21 Marton :
Thank you for reporting the vulnerability!
Your report help us to improve our page security.
We are really appreciated your work.
@PaulKLeasure1     22 June, 2020
    Twitter 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!
@VICTOR__Europe     25 May, 2020
    Twitter VICTOR__Europe Frank from VICTOR Europe GmbH:
Thank you for helping us to fix the critical SQL injection.
Friendly contact, thanks for the effort.

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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:3239
Total reports on VIP sites:773
Total patched vulnerabilities:2191
Total vulnerabilities on Hold (Open Bug Bounty):13
Recommendations received:104
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
27.10.2020
On Hold
Cross Site Scripting
17.10.2020
On Hold
Cross Site Scripting
16.10.2020
On Hold
Cross Site Scripting
13.10.2020
On Hold
Cross Site Scripting
30.09.2020
On Hold
Cross Site Scripting
30.09.2020
On Hold
Cross Site Scripting
22.09.2020
On Hold
Cross Site Scripting
21.09.2020
On Hold
Cross Site Scripting
20.09.2020
On Hold
Cross Site Scripting
15.09.2020
patched
Cross Site Scripting
15.09.2020
patched
Cross Site Scripting
15.09.2020
patched
Cross Site Scripting
13.09.2020
patched
Cross Site Scripting
09.09.2020
patched
Cross Site Scripting
13.08.2020
patched
Cross Site Scripting
13.08.2020
patched
Cross Site Scripting
13.08.2020
patched
Cross Site Scripting
13.08.2020
patched
Cross Site Scripting
13.08.2020
patched
Cross Site Scripting
13.08.2020
patched
Cross Site Scripting

  Latest Patched

 30.10.2020 123rf.com
 30.10.2020 t3n.de
 30.10.2020 489pro.com
 30.10.2020 dgtle.com
 29.10.2020 photobucket.com
 29.10.2020 istockphoto.com
 29.10.2020 skin.gs
 28.10.2020 plos.org
 28.10.2020 audiusa.com
 28.10.2020 um.es

  Latest Blog Posts

26.10.2020 by _r00t1ng_
Bypass Addslashes using Multibyte Character
26.10.2020 by _r00t1ng_
One Payload to Inject them all - MultiQuery Injection
26.10.2020 by _r00t1ng_
Routed SQL Injection
26.10.2020 by _r00t1ng_
DIOS the SQL Injectors Weapon
26.10.2020 by p4c3n0g3
How to find AngularJS XSS

  Recent Recommendations

@benskiddle     30 October, 2020
    Twitter benskiddle:
Great disclosure of an SQL injection bug with good details to replicate the issue. Thank you.
@MizoueShumpei     29 October, 2020
    Twitter MizoueShumpei:
Thank you very much for your help.
@adridder     28 October, 2020
    Twitter adridder:
Thank you for your help with this XSS vulnerability on our site. We appreciate the responsible reporting via openbugbounty.
@gaborvitez     28 October, 2020
    Twitter gaborvitez:
Ajaysen R found a reflected cross site scripting bug in one of our cgi scripts, this way he helped us improve the security of our website. He was really fast to react, working with him was really a pleasure. We are grateful for the issues he made us aware of.
@Jobe1986     28 October, 2020
    Twitter Jobe1986:
Thank you for your efforts and reporting the XSS vulnerability you found on my website.