Coordinated and Responsible Vulnerability Disclosure Free Bug Bounty Program 435,822 coordinated disclosures
234,544 fixed vulnerabilities
586 bug bounties with 1181 websites
11,826 researchers, 949 honor badges

JOSEFOX | Security Researcher Profile


Security researcher JOSEFOX has already helped fix 180 vulnerabilities.



Researcher reputation:  210

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.
    31 March, 2019
     Downnotify Martin de Vries from DownNotifier.com:
Josefox did a good job reporting an CSRF vulnerability
    28 March, 2019
     RESTPOSTENde Christoph from GKS Handelssysteme GmbH:
Thanks to Youssef for pointing the finger to a vulnerbility on our website. Through his support we were able to patch it in almost no time. It's guys like him that make the internet a better and safer place!
    27 February, 2019
     gizmotico Andersen from VegaDesign.net:
Thank you for reporting a XSS vulnerability. Very much appreciated.
    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.

Shows the first 10 recommendations. See all.

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:420
Total reports on VIP sites:38
Total patched vulnerabilities:180
Total vulnerabilities on Hold (Open Bug Bounty):1
Recommendations received:14
Active since:13.12.2017

Open Bug Bounty Certificate





No posts in blog yet


Reported Vulnerabilities

All Submissions VIP Submissions

Domain Reported Status Type
16.08.2019
On Hold
Cross Site Scripting
02.08.2019
patched
Cross Site Scripting
26.07.2019
patched
Cross Site Scripting
26.04.2019
patched
Cross Site Scripting
13.04.2019
patched
Cross Site Scripting
13.04.2019
unpatched
Cross Site Scripting
26.03.2019
unpatched
Cross Site Scripting
09.03.2019
unpatched
Cross Site Scripting
09.03.2019
unpatched
Cross Site Scripting
09.03.2019
unpatched
Cross Site Scripting
09.03.2019
unpatched
Cross Site Scripting
09.03.2019
patched
Cross Site Scripting
15.02.2019
unpatched
Cross Site Scripting
13.02.2019
patched
Cross Site Scripting
09.02.2019
patched
Cross Site Scripting
30.01.2019
unpatched
Cross Site Scripting
22.01.2019
unpatched
Cross Site Scripting
22.01.2019
patched
Cross Site Scripting
22.01.2019
unpatched
Cross Site Scripting
21.01.2019
patched
Cross Site Scripting

  Latest Patched

 17.09.2019 njuskalo.hr
 16.09.2019 jobs2careers.com
 16.09.2019 ctpost.com
 16.09.2019 sheypoor.com
 16.09.2019 broadwayworld.com
 16.09.2019 gmatclub.com
 15.09.2019 apartmentguide.com
 15.09.2019 playboy.com
 15.09.2019 sponichi.co.jp
 15.09.2019 boxofficemojo.com

  Latest Blog Posts

13.09.2019 by drok3r
Collection of information | Google Hacking and Dorks basic
09.09.2019 by DakkarKey
New and Powerful XSS scan tool - XSpear
05.09.2019 by MiguelSantareno
Wordpress basic auditing
05.09.2019 by MiguelSantareno
Payloads for all type off web attacks
19.08.2019 by ismailtsdln
IBM - Cross site Scripting [XSS]

  Recent Recommendations

    15 September, 2019
     dusalnet:
Thank you for find vulnerability for my site.
    15 September, 2019
     eventmanagerOnl:
Dear Rajesh, Thanks for your good support and good communication. We were pleased to meet you.
    13 September, 2019
     Web1Consulting:
KhanJanny provided specific information and was very responsive. I very much appreciate his efforts.
    13 September, 2019
     CertUC3M:
We would like to thank Fakessh for your carefull and professionally conducted vulnerability report.

Wishing you the best

Rafael Calzada
Security Manager
Universidad Carlos III of Madrid
[email protected]
    13 September, 2019
     DiEsse:
Big thanks to 0xrocky for identifying and responsibly disclosing a vulnerability on our site!