calv1n Top Security Researcher Top Security Researcher of the Month Top VIP Security Researcher of the Month | Security Researcher Profile

Researcher reputation:  510

Real name:
André Calvinho

About me:
A security professional

Contact email:
[email protected]

Experience in Application Security
over 5 years

Award / Bug Bounty I prefer:
Donations
Paypal: paypal.me/ACalvinho
Bitcoin: 13WaUodj7xtPL3UkpUUDU9YQy6GYW8ki65

Vouchers (eg. Amazon)
Software Licenses (eg. Keys)
Other types of digital work
Recommendations

Recommendations and Acknowledgements | Full List:

    3 August, 2019

     NewLineHorizon1 Melisa from NewLineHorizon:

Dear, Thanks for participating in responsible disclosure program. The reports you submitted were extremely helpful to our team and provided us the details we needed to resolve the issues that you identified. We are deeply committed to provide a safe and secure experience to our users and are therefore grateful for your efforts to help us improve our services. Best Regards!

    24 July, 2019

     masayuki_oguni masayuki_oguni from manba:

Andre discovered the XSS vulnerability on our site and contacted us. Thank you for your quick and polite response to my email. Thank you!

    24 July, 2019

     masayuki_oguni masayuki_oguni from manba:

Andre discovered the XSS vulnerability on our site and let us know. It was very helpful that you answered my questions quickly and politely. Thank you.

    29 April, 2019

     pharmokan pharmokan from private:

Thank you Andre for reporting XSS on our site. All is fixed. Cheers.

    4 December, 2018

     owenborseth Owen from Porkbun LLC:

André found an XSS vulnerability on our site and let us know. He was great to work with and a friendly guy all around. Thanks!

    15 November, 2018

     corebox Jon from Corebox:

Andre found a vulnerability on one of our websites and responsibly reported it. Many thanks for letting us know.

    12 September, 2018

     NoelDeMartin Noel De Martin from MusicList:

André found a security problem we didn't think we could have. Thanks for helping keep the Internet secure!

    20 August, 2018

     n8manAfter Nathan from A Gift Inside:

Thanks for finding our XSS vulnerability and notifying us.

    11 May, 2018

     RikDhuyvetters Rik from The Reference:

André found an issue with the site we had also discovered. He handled this very correct. Thank you, André.

    6 April, 2018

     ortic Remo from mesch:

Thanks to André for taking his time to find a security problem on a site of ours. The site is about to be shut down which he couldn't know, but he handled everything nice and smooth.

    5 April, 2018

     MSDistUK Dave from MSDistUK:

Thank you for notifying us of the vulnerability on our site, we were quickly able to put in place a fix based on the information that was provided. Thank you Andre.

    2 April, 2018

     klaussandrini Klaus from Mundo da Carabina:

André reported a vulnerability on our site enabling us to make the necessary corrections to keep our system secure. We appreciate him attention in quickly clarifying the issues and help to fixed it quickly.

    26 March, 2018

     piecemobile EMERIC from SARL CHANTA:

Thanks for reporting this issue , as we fix this issue very fast

    26 March, 2018

     Nazin001 Piotr from GameExe:

Thank you a lot for helping identifying the security issues.

    22 March, 2018

     bajecolesterol abc from abajarcolesterol.com:

Thank you very much for your help, Andre. Great job!

    21 March, 2018

     laci27 George from -:

Andre did an excellent job finding the bug on our site and was very professional about it. Highly recommended!

    21 March, 2018

     SWeathercamp Sietse from Eagerly:

Thanks André for pointing out the vulnerability and giving us the opportunity to fix it!

    20 March, 2018

     tkalve Thomas Kalve from Peanuts AS:

Thanks to André we were made aware of a security issue on a clients website and were able to identify and fix it quickly.

    19 March, 2018

     codingstyle Chris Buguet from Cinemur:

Thanks to André for making our website safer by reporting an XSS vulnerability, and for his numerous contributions on Open Bug Bounty. He makes the Internet a better place!

    13 March, 2018

     LaLorelayn LauraB from Hamburg, Germany:

After André informed us about an XSS vulnerability on our website, we were able to identify the issue (with the help of his explanations) and fixed it quickly. We thank him very much for that!

    23 February, 2018

     chaankman Marcus from Germany:

André reported an exploit and helped finding a solution. we thank him very much for that!

    10 January, 2018

     scrivna Ross from NA:

Thanks for reporting this issue responsibly, we were able to fix this XSS issue quickly.

    8 January, 2018

     arthurebel Arthur EBEL from UTT:

Thank you for taking part in the security of our site by identifying an XSS Fault and explaining to us exactly where it was

    7 January, 2018

     MegaEscort Rob Rob from Megaescort:

Thank you Andre, you helped me finding a mad XSS error. Great work!!!

    4 January, 2018

     criticalthinks Nile from CriticalThinking.com:

Thank you Andre! He helped us identify an XSS vulnerability.

    4 January, 2018

     tribulant Antonie from Tribulant Software:

Thanks Andre! He found an XSS exploit and reported it to us and we fixed it.

    4 January, 2018

     SebastianKurski Sebastian Kurski from freelancer:

Andre informed as about XSS vulnerability. He explained exactly where the problem is. Information from Andre helped us fix the issue. People like him, devoting their free time, make the internet safer. Thanks Andre! Perseverance in further work!

    4 January, 2018

     hiandras hiandras from hunet:

Thanks for Andres's report, we found and fixed the vulnerability.

    3 January, 2018

     blog4ever Pascal M from Blog4ever:

André found a XSS vulnerability and kindly explained us where it was and why it was dangerous. Thank you André !

    3 January, 2018

     Moose3Josh Josh from Las Vegas:

André was very kind in disclosing an XSS bug affecting an old web site of mine. He provided examples to help me reproduce and fix the issue. Thank you very much!

    3 January, 2018

     Pandaa1235 Ryan from Armor:

Andre was super helpful and quick in response when helping with an XSS vulnerability on one of our websites. We appreciate the help Andre, and your proactive demeanor.

    3 January, 2018

     jcb123 Jon from TCC:

Thanks for the notice. It was great feedback.

    3 January, 2018

     NKokiska Nishkam from Kokiska:

Thank you very much for your help, Andre! We've found and fixed the XSS trouble at our website due to your advice.

    13 December, 2017

     zfinsys Systems from ZFIN:

Thank you, Andre. Your notification of the XSS vulnerability helped us plug that hole quickly. Keep up the good work.

    8 December, 2017

     AIT39778017 Jerry from AIT:

Thank you very much Andre! Thanks to him we were able to fix some XSS vulnerability we were not aware of. Communication was instant and with every needed details. Very professional attitude.

    14 November, 2017

     microtome Thomas from PergiKuliner:

Thanks a lot Andre! I've taken it too lightly and slipped, I'm glad it's him who found it out first and post it here. It could be harmful, but Andre's approach is really positive. This inspire me to build better sites and help others developer to secure more internet user. Keep it up, Andre!

    23 October, 2017

     fabien_zimmer Fabien Zimmer from Myne:

Let's begin with a big thanks of course. Andre provided me with some handy feedback and solutions. Pro-active attitude much appreciated.

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:	58772
Total reports on VIP sites:	962
Total patched vulnerabilities:	22043
Recommendations received:	37
Active since:	30.09.2017
Top Security Researcher Awards:	The Top Security Researcher 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 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 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 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
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Open Bug Bounty Certificate

Reported Vulnerabilities

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