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494,087 coordinated disclosures
269,347 fixed vulnerabilities
666 bug bounties with 1,346 websites
13,733 researchers, 1038 honor badges

badmaxx Top VIP Security Researcher of the Month | Security Researcher Profile

Security researcher badmaxx has already helped fix 1548 vulnerabilities.

Researcher reputation:  70

Real name:

About me:
You can contact me in german or english

How to contact me:
[email protected]

Alternative Contacts:
Twitter: @xss_badmaxx

Experience in Application Security
1-3 years

Award / Bug Bounty I prefer:
Paypal, Giftcards, some stuff from your Shop, T-Shirt or a nice mail or a recommendation on openbugbounty

Recommendations and Acknowledgements

    24 May, 2018
     eulenberger Sven from netclusive GmbH:
Thanks for your help!
    3 May, 2018
     classmarketsHQ classmarketsHQ from classmarkets:
badmaxx found and responsibly disclosed a XSS vulnerability in our SaaS
product. We appreciate his work and bringing this problem to our intention. The issue has been resolved quickly with the information provided by badmaxx.
    10 April, 2018
     Michi_Fuehrer Michael from LfA:
Thank you badmaxx for reporting a security bug. The security hole has been closed.
    20 July, 2017
     PixelAgentur PixelAgentur from PixelProduction:
Thank you badmaxx for reporting a security bug on The sercurity hole has been closed.

Thx a lot PixelProduction
    18 April, 2017
     Intriweb Benjamin Löwen from InTriWeb:
Thanks for reporting a potential security vulnerability on

With the information from badmaxx, I could close the gap immediately.

Many Thanks


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Honor Badges

Number of Secured Websites

10+ Websites
50+ Websites
500+ Websites
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

10+ Recommends
25+ Recommends
50+ Recommends

Distinguished Blog Author

1 Post
3 Posts
5+ Posts

Research Statistics

Total reports:2614
Total reports on VIP sites:68
Total patched vulnerabilities:1548
Total vulnerabilities on Hold (Open Bug Bounty):44
Recommendations received:5
Active since:25.03.2017
Top Security Researcher Awards: Top Security Researcher of the Month Top Security Researcher of the Month Top Security Researcher of the Month Top Security Researcher of the Month Top Security Researcher of the Month

Open Bug Bounty Certificate

No posts in blog yet

Reported Vulnerabilities

All Submissions VIP SubmissionsFeatured Submissions

Domain Reported Status Type
Cross Site Scripting
Cross Site Scripting
Cross Site Scripting
Cross Site Scripting
Cross Site Scripting

  Latest Patched


  Latest Blog Posts

20.01.2020 by Rando02355205
XSS on "" (Alibaba WAF 405) Bypassed.
16.01.2020 by Open Bug Bounty
Brief Recap of Open Bug Bounty’s Record Growth in 2019
12.01.2020 by JCQ_47
WAF Cloudflare Bypass XSS at
08.01.2020 by devl00p
Top 100 Open Redirect dorks
08.01.2020 by Rando02355205
XSS WAF Bypassed

  Recent Recommendations

    24 January, 2020
Thanks Again.
    24 January, 2020
Thanks for the XSS report. We have patched the issue. Thank a lot for alerting us.
    24 January, 2020
Thanks for reporting issue on our Website. Vulnerability has been patched
    23 January, 2020
MAS00712 found xss vulnerability on our website. We have fixed the issue. Thank you for your report!
    23 January, 2020
Thank you for reporting the XSS issue you found. Based on your information we were able to fix the problem. Thank you!