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750,929 coordinated disclosures
438,293 fixed vulnerabilities
1148 bug bounties with 2,200 websites
20,696 researchers, 1257 honor badges

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

Security researcher k0t has already helped fix 2346 vulnerabilities.

Researcher reputation:  2070

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

@DougNix     5 January, 2021
    Twitter DougNix Doug Nix from Compliance inSight Consulting Inc.:
I worked with k0t to resolve an issue on our website recently, and they were very easy to work with and very responsive. I appreciated their professionalism and respectful approach. Great job!
@Alyzeseo     14 December, 2020
    Twitter Alyzeseo Alexandre from Alyze:
Thank you very much! I recommend this researcher. Very clear and pleasant to explain the XSS vulnerability on my site. Best regards.
@antpbe     11 December, 2020
    Twitter antpbe antp from
Thanks for finding a XSS issue, afters others were already found and fixed.
@hitcomnewmedia     17 November, 2020
    Twitter hitcomnewmedia Ralf from hitcom gmbh:
Thank you for reporting the vulnerability!
We already fixed it.
@WebShakeRU     10 November, 2020
    Twitter WebShakeRU Artyom from
Thank you!
@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:
@mender_io     1 September, 2020
    Twitter mender_io Michael from
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.

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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
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

10+ Recommends
25+ Recommends
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:4106
Total reports on VIP sites:823
Total patched vulnerabilities:2346
Total vulnerabilities on Hold (Open Bug Bounty):806
Recommendations received:110
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 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

  Latest Patched


  Latest Blog Posts

25.12.2020 by _Y000_
How to bypass mod_security (WAF)
10.12.2020 by _Y000_
sql injection to bypass Mod_Security
10.12.2020 by _Y000_
Create encoded sql payloads
26.10.2020 by _r00t1ng_
Bypass Addslashes using Multibyte Character
26.10.2020 by _r00t1ng_
One Payload to Inject them all - MultiQuery Injection

  Recent Recommendations

@TCastellani3     23 January, 2021
    Twitter TCastellani3:
Ótimo como profissional e como pessoa, se precisam de ajuda é com ele que devem falar, extremamente competente!
@KodiMaster1     23 January, 2021
    Twitter KodiMaster1:
Good and professional report. I was a pleasure working with him!
@igucci     23 January, 2021
    Twitter igucci:
Thank you for the notification and quick & polite response.
Keep up the great work!
@randomthing4ev1     22 January, 2021
    Twitter randomthing4ev1:
Thank you for pointing out the vulnerability on our website! Very responsive.
@dtestitall     22 January, 2021
    Twitter dtestitall:
Thank you for finding the information disclosure vulnerability! Praveen was very responsive!