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533,913 coordinated disclosures
288,533 fixed vulnerabilities
742 bug bounties with 1,457 websites
15,010 researchers, 1072 honor badges

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

Security researcher badmaxx has already helped fix 1621 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:2619
Total reports on VIP sites:68
Total patched vulnerabilities:1621
Total vulnerabilities on Hold (Open Bug Bounty):48
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

04.04.2020 by Rando02355205
(Alibaba) [IDOR] - [Bug Bounty]
12.03.2020 by Rando02355205
(Paypal) [CSP High Level] - [XSS Reflected] - [Bug Bounty] - [Write Up]
08.03.2020 by CybeReports XSS Vulnerability| CybeReports
29.02.2020 by Rando02355205
(Google) - [Stored XSS] - [Bug Bounty] - [WriteUp] - [24/02/2020]
10.02.2020 by 0xrocky
Stored XSS on

  Recent Recommendations

    7 April, 2020
Thanks Rajesh, for reporting some vulnerabilities of our site! Useful reports and good communication.
    6 April, 2020
Jatin understood the importance of moving quickly and with discretion. He waited to until he found the right group to submit the details and provided easy-to-understand details.

As a result we have remediated the problem and have Jatin to thank.
    5 April, 2020
Cool and professional contact, quick response, I appreciate your effort.
    3 April, 2020
Brian helped to identify an XSS Vuln on a client's wordpress implementation and was quick and helpful to respond to our query. With his notes, we were able to quickly mitigate this issue and we appreciate his help and professionalism.
    2 April, 2020
I have really appreciated this researcher for his great skill and communication. He found a cross site scripting vulnerability on our service and help us fixing it. I recommend Broly157. He's a A++ researcher