Open Bug Bounty selected among the
Top 5 Bug Bounty programs to watch
in 2021 by The Hacker News

For security researchers
Report a Vulnerability
Submit, help fixing, get kudos.
For website owners
Start a Bug Bounty
Run your bounty program for free.
974,467 coordinated disclosures
614,174 fixed vulnerabilities
1,323 bug bounty programs, 2,654 websites
22,785 researchers, 1,309 honor badges

login_deniedTop-50 VIP XSS Researcher Top VIP Security ResearcherTop-50 VIP Open Redirect Reporter Top Security Researcher of the Month Top VIP Security Researcher of the Month | Security Researcher Profile


Security researcher login_denied has already helped fix 8325 vulnerabilities.



Researcher reputation:  1300

Real name:
Andre

About me:
Mathematician from Germany

Contact email:
[email protected]

Experience in Application Security
1-3 years

Award / Bug Bounty I prefer:
Bounty Payment (e.g. PayPal via [email protected]);
Swag (T-shirt, cup, gimmick);
Recognition, thanks, fame;
Feedback would be nice.

Follow me on:
Twitter

Recommendations and Acknowledgements

@contadinoimpazz     2 January, 2021
    Twitter contadinoimpazz Alessandro from Testa:
He has provided us with precious information regarding cross-site scripting vulnerabilities on our site. Thanks
@AnimeCons     18 May, 2020
    Twitter AnimeCons Patrick from FanCons:
Found an XSS issue we had open...and was the first ever report we got via this site. Very helpful info!
@dusalnet     7 September, 2019
    Twitter dusalnet Blogmn.net from Blogmn.net:
Thank you for identifying the XSS issue on my site! You have been very helpful!
@dusalnet     7 September, 2019
    Twitter dusalnet Blogmn.net from Blogmn.net:
Thank you for identifying the XSS issue on my site! You have been very helpful!
@bethe     15 June, 2019
    Twitter bethe Thomas B :
Thank you very much for helping us to find and fix an unknown issue with our website.
@CSIRTCV     9 May, 2019
    Twitter CSIRTCV Team from CSIRT-CV:
Thank you for disclosing the XSS on a site under our constituency and all the info provided, so we were able to replicate the problem and initiate the fix.
@iGopherFr     8 May, 2019
    Twitter iGopherFr Audrey from iGopher:
He found an XSS security flaw on our website that we did not notice despite our security tests. I recommend Andre without hesitation!
@VKimWandel     1 May, 2019
    Twitter VKimWandel Andreas from von VKimWandel:
Vielen Dank für den Hinweis auf die Sicherheitsanfälligkeit auf unserer Website login_denied!
@YanezDeGomorra     5 April, 2019
    Twitter YanezDeGomorra Antonio Ranesi from antonioranesi.it:
Thanks you for your report on my website and and for your kind availability in providing the details immediately.
@myparadisio     3 April, 2019
    Twitter myparadisio Yves from Paradisio:
Thanks for pointing out the vulnerabilty on our website, login_denied!

Shows the first 10 recommendations. See all.

Please login via Twitter to add a recommendation

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:40879
Total reports on VIP sites:2351
Total patched vulnerabilities:8325
Recommendations received:78
Active since:07.05.2017
Top Security Researcher Awards:Gold Star Top Security Researcher of the Month Gold Star Top Security Researcher of the Month Gold Star Top Security Researcher of the Month Gold Star Top Security Researcher of the Month Gold Star Top Security Researcher of the Month Gold Star Top Security Researcher of the Month Gold Star Top Security Researcher of the Month Gold Star Top Security Researcher of the Month Gold Star Top Security Researcher of the Month Gold Star Top Security Researcher of the Month Gold Star Top Security Researcher of the Month Gold Star Top Security Researcher of the Month Gold Star Top Security Researcher of the Month Gold Star Top Security Researcher of the Month Gold Star Top Security Researcher of the Month Gold Star Top Security Researcher of the Month Gold Star Top Security Researcher of the Month Gold Star Top Security Researcher of the Month Gold Star Top Security Researcher of the Month
Top VIP Security Researcher Awards: The VIP Top Security Researcher 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 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 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 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 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 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 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 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 Top VIP Security Researcher of the Week

Open Bug Bounty Certificate


Researcher Certificate

Reported Vulnerabilities

All Submissions VIP Submissions




No posts in blog yet










  Latest Patched

 15.05.2021 nikkei.com
 15.05.2021 bebest.am
 15.05.2021 mindmajix.com
 15.05.2021 almontmichigan.gov
 15.05.2021 updato.com
 15.05.2021 laist.com
 15.05.2021 salma.ai
 15.05.2021 liveworksheets.com
 14.05.2021 quoka.de

  Latest Blog Posts

25.04.2021 by ParanjpeSanmarg
Testing Subdomain Takeover Vulnerability
11.04.2021 by Open Bug Bounty
Better Notifications Mechanism
28.03.2021 by febin_rev
Windows Stack Buffer Overflow in a real life app — Exploit development — CloudMe_1.11.2 Buffer Overflow-CVE-2018–6892
10.02.2021 by Renzi25031469
Sysadminotaur nº88
10.02.2021 by Open Bug Bounty
Higher Submissions Quality Standard

  Recent Recommendations

@philippejadin     14 May, 2021
    Twitter philippejadin:
Thank you for reporting an issue with the presentation website of the project and for the quick replies !
@DjMagrao_     11 May, 2021
    Twitter DjMagrao_:
Thanks for founding xss errors on my website and fixing then.
@DouglasRao42     10 May, 2021
    Twitter DouglasRao42:
Profissional competente que tem contribuído ativamente no campo da segurança da informação.
@obb20210429     6 May, 2021
    Twitter obb20210429:
Thanks for a quick and useful report that helped us find and resolve the issue.
@MrGviana     6 May, 2021
    Twitter MrGviana:
Ricardo, thank you for reporting vulnerabilities and helping me to solve them.