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544,147 coordinated disclosures
349,629 fixed vulnerabilities
818 bug bounties with 1,596 websites
16,793 researchers, 1135 honor badges

Lewis | Security Researcher Profile


Security researcher Lewis has already helped fix 836 vulnerabilities.



Researcher reputation:  10

Real name:
Lewis

About me:
Pentester - don't hesitate to shoot an email if I report something on your site; I always reply!

How to contact me:
Email - lewis[/{at}/]slash.org
Twitter - @Understand

Certifications & Diplomas:
CREST Practitioner Security Analyst (CPSA)
BSc Hons In Computer & Information Security

Experience in Application Security
over 5 years

Award / Bug Bounty I prefer:
Paypal or your choice of cryptocurrency bounties are always welcome :)

Halls of Fame:
Tesla
Microsoft
Mozu
(ISC)

Follow me on:
Twitter

Recommendations and Acknowledgements

    14 January, 2016
     tjpoutanen :
Lewis reported an XSS vulnerability on milq.com. I'm the CTO and received a report from xssposed. I emailed lewis and within minutes he responded with an example URI that would trigger the vulnerability and information on how to prevent it. Awesome.

I owe him and xssposed a big boatload of gratitude.

Please login via Twitter to add a recommendation

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:1131
Total reports on VIP sites:131
Total patched vulnerabilities:836
Total vulnerabilities on Hold (Open Bug Bounty):9
Recommendations received:1
Active since:08.06.2015

Open Bug Bounty Certificate





No posts in blog yet


Reported Vulnerabilities

All Submissions VIP SubmissionsFeatured Submissions

Domain Reported Status Type
07.07.2020
On Hold
Cross Site Scripting
02.07.2020
On Hold
Cross Site Scripting
02.07.2020
On Hold
Cross Site Scripting
01.07.2020
On Hold
Cross Site Scripting
01.07.2020
On Hold
Cross Site Scripting
25.06.2020
On Hold
Cross Site Scripting
25.06.2020
On Hold
Cross Site Scripting
25.06.2020
On Hold
Cross Site Scripting
18.06.2020
On Hold
Cross Site Scripting
03.04.2020
unpatched
Cross Site Scripting
03.04.2020
unpatched
Cross Site Scripting
02.04.2020
patched
Cross Site Scripting
05.03.2020
unpatched
Cross Site Scripting
25.11.2019
unpatched
Cross Site Scripting
10.12.2018
unpatched
Open Redirect
07.11.2017
unpatched
Cross Site Scripting
07.11.2017
unpatched
Cross Site Scripting
06.05.2017
patched
Cross Site Scripting
06.05.2017
patched
Open Redirect
02.05.2017
patched
Cross Site Scripting

  Latest Patched

 13.07.2020 valuecoders.com
 13.07.2020 gamemeca.com
 13.07.2020 jumkak.com
 13.07.2020 tingroom.com
 13.07.2020 conjugacao.com.br
 13.07.2020 biphim.tv
 13.07.2020 app.ptuk.edu.ps
 13.07.2020 liveinternet.ru
 13.07.2020 neimanmarcus.com
 13.07.2020 unigo.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

    14 July, 2020
     tnyaritm:
Many thanks for your efforts to report the vulnerability and helped us to fix it. I recommend this researcher!
    13 July, 2020
     SFgenealogy:
Appreciate your discovery and notification of a bug so that we can increase our security!
    10 July, 2020
     Cajun_Lyrics:
Thank you very much for letting me know about the vulnerabilities on my website, It is really appreciated!
    10 July, 2020
     SNTech2:
A big thanks for notifying us of the bug! Much appreciated.
    10 July, 2020
     SNTech2:
A big thanks for notifying us of the bug! Much appreciated.