Coordinated and Responsible Vulnerability Disclosure Free Bug Bounty Program 329,323 coordinated disclosures
190,858 fixed vulnerabilities
411 bug bounties with 868 websites
9,227 researchers, 854 honor badges

JOSEFOX | Security Researcher Profile


Security researcher JOSEFOX has already helped fix 174 vulnerabilities.



Researcher reputation:  170

Real name:
Youssef ABYAA

How to contact me:
You can contact me : https://twitter.com/josef0x
or : [email protected]

Experience in Application Security
1-3 years

Award / Bug Bounty I prefer:
> Bounty (Paypal)
> Swag (T-shirt)
> Public acknowledgement

Halls of Fame:
https://buffer.com/security
http://secure.sony.net/hallofthanks

Recommendations and Acknowledgements

    18 February, 2018
     jacobjovelou Jacob J from 1x Innovations AB:
Excellent researcher that helped us to find several XSS vulnerabilities on our website. Very friendly and professional communication.
    26 October, 2018
     euvtechnology euvtechnology from Engel & Völkers Technology:
Dear Youssef, thank you for getting in touch and helping us keeping our webservices secure!
    8 October, 2018
     astroseekcom Petr9 from Astro-Seek.com:
JOSEFOX helped me with XSS vulnerability report. It's patched now. Thank you.
    5 September, 2018
     levofski Chris Levy from Strategies:
Very helpfully found and gave us the details of a bad vulnerability in a website. Now patched thanks to the good information.
    14 June, 2018
     seokerwang Seoker Wang from Pointimize:
Thanks for pointing out the vulnerabilities. Very helpful and appreciated!
    2 April, 2018
     icarus200510 Saeyoung Lee from Bucheon city, Korea:
Thank you for notifying us of the issue with the XSS vulnerability.
Very helpful and very much appreciated.
    9 March, 2018
     schill_gmbh Ingo Schill from Schill GmbH & Co. KG:
Thanks for pointing out the error on our website in a professional manner. Very much appreciated.
    6 March, 2018
     ronnyadsetts Ronny Adsetts from Nikon Owner Magazine:
Thanks for pointing out the error on our website in a professional manner. Very much appreciated.
    7 February, 2018
     ComponentSpace Web Master from ComponentSpace:
Thank you for notifying us of the issue with the 3rd party forum software we are using.
    6 February, 2018
     Tomas_Vojta Tomas from Comptabilisation.fr:
Good JOB! Thank you for link for mistake where is broken our one GET parameter

Shows the first 10 recommendations. See all.

Please login via Twitter to add a recommendation

Awards and Achievements


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:412
Total reports on VIP sites:38
Total patched vulnerabilities:174
Total vulnerabilities on Hold (Open Bug Bounty):12
Recommendations received:11
Active since:13.12.2017

Open Bug Bounty Certificate





No posts in blog yet


Reported Vulnerabilities

All Submissions VIP Submissions

Domain Reported Status Type
09.03.2019
On Hold
Cross Site Scripting
09.03.2019
On Hold
Cross Site Scripting
09.03.2019
On Hold
Cross Site Scripting
09.03.2019
On Hold
Cross Site Scripting
09.03.2019
On Hold
Cross Site Scripting
15.02.2019
On Hold
Cross Site Scripting
13.02.2019
patched
Cross Site Scripting
09.02.2019
patched
Cross Site Scripting
30.01.2019
On Hold
Cross Site Scripting
22.01.2019
On Hold
Cross Site Scripting
22.01.2019
patched
Cross Site Scripting
22.01.2019
On Hold
Cross Site Scripting
21.01.2019
patched
Cross Site Scripting
21.01.2019
patched
Cross Site Scripting
21.01.2019
On Hold
Cross Site Scripting
02.01.2019
On Hold
Cross Site Scripting
31.12.2018
On Hold
Cross Site Scripting
27.11.2018
unpatched
Cross Site Scripting
23.10.2018
unpatched
Cross Site Scripting
20.10.2018
unpatched
Cross Site Scripting

  Latest Patched

 25.03.2019 lexisnexis.com
 24.03.2019 datpiff.com
 24.03.2019 gruppocarige.it
 24.03.2019 javhd.pro
 24.03.2019 flirt4free.com
 23.03.2019 redcross.org
 23.03.2019 etsu.edu
 23.03.2019 dump.xxx
 23.03.2019 vipon.com

  Latest Blog Posts

22.03.2019 by HackerGautam
TLS 1.3 Genesis, Mechanism and Working
19.03.2019 by Open Bug Bounty
GDPR PII exposure can now be securely reported via Open Bug Bounty
24.02.2019 by ismailtsdln
Apple XSS Vulnerability - Proof of Concept (PoC)
24.02.2019 by ismailtsdln
How do you use an xss as a keylogger ?
23.02.2019 by ismailtsdln
Everything about XSS is in this source!

  Recent Recommendations

    25 March, 2019
     RESTPOSTENde:
Dear Armin, thank you very much for reporting a vulnerability to us in such a respectful, professional way! Your extensive documentation helped us tremendously to solve the issue in almost no time.

It's guys like you that make the internet a better and safer place! Thanks alot!
    24 March, 2019
     granthughes17:
Thank you for reporting this vulnerability to us responsibly and for your professional conduct. Your assistance and professionalism is much appreciated.
    22 March, 2019
     jcfmachado:
Thank you for your time and notification.
    19 March, 2019
     rogerdc01:
Ezio has helped me with a vulnerability. Answered very fast after some questions and showed the way to examine the issue. Very professional!
    19 March, 2019
     interactmultim1:
Thank you k0t for reporting this bug. We appreciate your work!