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KarstenBerlin | Security Researcher Profile

Security researcher KarstenBerlin has already helped fix 68 vulnerabilities.

Researcher reputation:  10

Real name:
Karsten from Berlin

About me:
Senior DevOps Engineer and WhiteHat in my free time
located in Berlin

Contact email:
[email protected]

Certifications & Diplomas:

Experience in Application Security
< 1 year

Award / Bug Bounty I prefer:
PayPal: or
Amazon Wishlist:
and any kind of graditute

Halls of Fame:

Follow me on:

Recommendations and Acknowledgements

@ITSiBeBonn     11 November, 2021
    Twitter ITSiBeBonn ITSiBeBonn from Bundesstadt Bonn:
Sehr geehrter KarstenBerlin,
vielen Dank für die Aufdeckung der Sicherheitslücke auf unserer Webseite, den verantwortungsvollen und konstruktiven Umgang hiermit und den freundlichen Kontakt. Der Hersteller konnte die Schwachstelle dank Ihrer Hilfe inzwischen schließen.

Ich wünsche Ihnen auch weiterhin viel Erfolg bei Ihrer wichtigen Arbeit zum Wohle der Betreiber und Nutzer angreifbarer Seiten wie auch der Netzsicherheit insgesamt.

Mit Freundlichen Grüßen

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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
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

10+ Recommends
25+ Recommends
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:184
Total reports on VIP sites:7
Total patched vulnerabilities:68
Total vulnerabilities on Hold (Open Bug Bounty):78
Recommendations received:1
Active since:09.10.2021

Open Bug Bounty Certificate

Researcher Certificate

Reported Vulnerabilities

All Submissions VIP SubmissionsFeatured Submissions

No posts in blog yet

  Latest Patched


  Latest Blog Posts

11.11.2021 by mistry4592
The Most used Chrome Extensions are Used For Penetration Testing.
08.10.2021 by NNeuchi
How I Found My First Bug Reflected Xss On PIA.GOV.PH(Philippine Information Agency)
26.08.2021 by PyaePhyoThu98
eG Manager v7.1.2: Improper Access Control lead to Remote Code Execution (CVE-2020-8591)
14.07.2021 by Open Bug Bounty
Interview With Open Bug Bounty
25.05.2021 by 0xrocky
Google XSS Game

  Recent Recommendations

@EplayerTv     1 December, 2021
    Twitter EplayerTv:
Very good researcher, also provides clear instructions how to easily fix issue.
@martin_ouwehand     30 November, 2021
    Twitter martin_ouwehand:
We thank KhanJanny for his responsible disclosure of an XSS in one of our Web sites
@Securityteam11     29 November, 2021
    Twitter Securityteam11:
Indrakant notified us responsibly in relation to an issue with one of our websites. Upon seeking further information. his response was prompt and thorough. Thank you Indrakant great effort.
@chrisbeach     29 November, 2021
    Twitter chrisbeach:
Helped me fix a bug on my site - thanks joe-grizzly!
@chrisbeach     27 November, 2021
    Twitter chrisbeach:
Thanks very much for reporting a bug in my website