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

Researcher reputation:  1670

Real name:
Praveen Kumar

Contact email:
[email protected]

Alternative Contacts:
[email protected]

Award / Bug Bounty I prefer:
I prefer bug bounty/swag/hof/vouchers
Paypal id - https://www.paypal.com/paypalme/cyberworld1

Recommendations and Acknowledgements | Full List:

    9 May, 2023

     pr0t30 Amílcar Guerra from Tricontinental:

Thank you Praveen for the report and swift help to fix the vulnerability on our website. Your help is greatly appreciated!

    18 April, 2023

     ColchonesDto Ruben from ColchonesConDescuento.es:

Thank you for letting us about the vulnerabilities found. Very helpful.

    5 September, 2022

     aartvdwerf Aart from OI:

Cyber_World helped us by pointing out some files that shouldn't be public! Thank you for the responsible disclosure!

    30 June, 2022

     madmas Markus from EvKgmSgb:

By your reports, we could understand and mitigate some security risks at our systems, thanks a lot for your help!

    17 March, 2022

     akibablade Liam from Warrior Collective:

Super professional and lightning-fast. Helped to resolve almost immediately. Fantastic!

    28 February, 2022

     evollis_tech Evollis tech team from Evollis:

The Evollis team would like to thank Praveen for his work. Professional, very reactive and disclosing the full details of the vulnerability in a responsible manner. Thanks !

    9 December, 2021

     AsictSoc Security-Ict-Asict from Politecnico di Milano:

Dear Cyber_World, the SOC of Politecnico di Milano would like to thank you for disclosing us the vulnerability on our infrastructure.

    19 November, 2021

     sandovs Daniel Sandoval from LoopKey:

Cyber_World helped us by pointing out some log files that shouldn't be public! Thank you for the responsible disclosure and cordiality during the whole process!

    4 June, 2021

     FUMBBL Christer Kaivo-oja from FUMBBL:

Found a clickjacking vulnerability and sent a professional and clear vulnerability report. Thank you Praveen!

    26 May, 2021

     BenKennish Ben Kennish from -:

Helpful and polite. Thanks Praveen!

    14 May, 2021

     philippejadin Phiolippe Jadin from Agorakit:

Thank you for reporting an issue with the presentation website of the project and for the quick replies !

    8 April, 2021

     jakeanders Jake from NCO:

I am very grateful for alerting me to this vulnerability and the clear instructions provided to mitigate the risk. I am also grateful for the extremely rapid response when getting in touch for further details. Thank you.

    12 March, 2021

     blasttheory Michael from Blast Theory:

Thank you Praveen for reporting an issue with our website and helping to resolve this. Good work. Thanks again.

    1 March, 2021

     CERT_rlp CERT-rlp from CERT-rlp:

The team of CERT-rlp would like to thank Cyber_India for a responsible and coordinated disclosure of vulnerabilities.

    1 March, 2021

     CERT_rlp CERT-rlp from CERT-rlp:

The team of CERT-rlp would like to thank Cyber_World for a responsible and coordinated disclosure of information disclosure vulnerabilities

    24 February, 2021

     ipoca_jp developer from ipoca:

Thank you for reporting an open Website Security Issue and help us to fix it!

    24 February, 2021

     ipoca_jp developer from ipoca:

Thank you for reporting us about the Website Security Issue.

    23 February, 2021

     poldish73 Sven from California:

Thank you for reporting a public accessible file and for the very helpful, fast and pleasant communication. Error was fixed in seconds. Thank you very much.

    22 February, 2021

     alex_ermer Alex from Clanintern:

Thanks for reporting my issues!

    21 February, 2021

     moliv3 Olivier from Girondel:

Thanks Praveen for finding a disclosure issue !

    20 February, 2021

     class502 Robert from Friends of the 502 Group:

Thank you for reporting an issue with our website and assisting us with a fix for the vulnerability.

    20 February, 2021

     demmojo Mohamed from Blok-Z:

We are grateful for the vulnerability report that you shared with us! Also, amazing response time!

    19 February, 2021

     axelhooge Axel from JBAG:

Thank you very much for your nice help and for reporting the beginner mistake to us :-)

    16 February, 2021

     Helping_Biz Nardo from U-C WEBS:

Thank you for pointing out that long forgotten vulnerable file on one of our servers. But it's gone now. :-)

    16 February, 2021

     NukeJay Jack from Printing Service:

Brought to our attention some security issues. Fast and clear communication! Can recommend!

    12 February, 2021

     DeputyVice Andrew Cartwright from NeuRA:

Many thanks to Cyber_World for identifying a git issue with our site and helping us to resolve it without delay.

    10 February, 2021

     shamusr001 Shannon Ribbons from Osis Design:

Praveen helped locate and define a vulnerability in my WordPress install, I recommend his skills.

    10 February, 2021

     fadlerQA Frank from meinestadt:

Thank you for reporting an issue and for the helpful communication.

    10 February, 2021

     LordSeru Sebastian Braune from TUCed GmbH:

Thank you for reporting a vulnerability on our site. Due to your detailed report, we could close it within minutes.

    10 February, 2021

     WiiDatabase Andreas from WiiDatabase:

Thank you for reporting an open XMLRPC to us!

    8 February, 2021

     portentandy Andy from Portent:

Thanks for pointing out our XMLRPC vulnerability!

    8 February, 2021

     thibaudmaes Thibaud from NSI:

Cyber_World informed us about a security issue on a website. Thanks to him, it's more secure now!

    8 February, 2021

     ytrls David from YTRL:

Thank you very much for pointing out the XMLRPC vulnerability!

    7 February, 2021

     ChuckieAJ AndyT from Trucklesoft:

Brought to my attention some security issues. Now resolved. Good communication.Recommended!

    6 February, 2021

     williamtm Will from Chase Trails:

Thanks to Praveen for reporting a potential security issue with our site - a public xmlrpc & json REST API.

    5 February, 2021

     unsinn_s21 Florian from VN:

helped to close a not used api in wordpress, quick and fast respond. Good luck to you and greetings from Germany.

    5 February, 2021

     IvanVazov5 Webmaster from SPNS:

A big thank you to Praveen for finding and disclosing an XML-RPC Vulnerability on our website. He came back to us in minutes and was very helpful.

    4 February, 2021

     fineststudios Mike from Inv:

Thanks for pointing out a public phpinfo() on our website.

    4 February, 2021

     ztobi ztobi from none:

Thanks for pointing our our public XML-RPC. Very fast contact

    3 February, 2021

     0tt3rL1k3 Andreas from KV Trier-Saarburg:

Thank You for the reporting and help to fix the issus. Stay Save! Greetings from Germany

    2 February, 2021

     SDCDF5 Charles from Cincinnati:

Many thanks for the report and recommendation! Merci beaucoup pour l'alerte et les explications !

    2 February, 2021

     kledoux kledoux from kledoux:

Thank you for reporting a security issue on our site, and for being so detailed and responsive!

    2 February, 2021

     dannythemonk Danny :

Thank you very much for your information and help. (XML-RPC API Wordpress) Regards..

    1 February, 2021

     Anjuli Webmaster from Stiftung trias:

Thanks for point out a public phpinfo(). Very fast contact.

    1 February, 2021

     ZerosGaming Fabian :

Thank you for your notification and quick follow up. Good luck with your OSCP, I know what it takes to get it.

    1 February, 2021

     cyber_pramod Matthu from Upwork:

Very kind and polite. reported very quickly and also helped in fixing bug. Best wishes from UK

    23 January, 2021

     igucci igucci from iwsec:

Thank you for the notification and quick & polite response. Keep up the great work!

    22 January, 2021

     dtestitall randomthing4ev1 from Name witheld:

Thank you for finding the information disclosure vulnerability! Praveen was very responsive!

    21 January, 2021

     Azatotht Sylvain from Quebec Amerique:

Thanks for pointing out a public phpinfo() on our website. A++

    21 January, 2021

     milano24ore Olaf from milano24ore:

Thank you for your tip for finding a vulnerability on the website. Very quick reply.

    20 January, 2021

     yuhiguchi1 yu-higuchi from ctc:

We appliciate your help with the vulnerability. The response to inquiries was quick, which was very helpful.

    20 January, 2021

     anTon_x3 anTon_X3 :

Thank you for finding security issues on my website! keep it up!

    19 January, 2021

     rantoniazzi Roberto Antoniazzi from Centro per la Cooperazione Internazionale:

Thanks for pointing out a public phpinfo(). Very fast contact.

    19 January, 2021

     driesvanhaver Dries from not disclosed:

We were informed of a vulnerability. Thank you to Praveen for telling us it existed.

    19 January, 2021

     snowdarkz Quanruthai from not disclosed:

Thank you very much for the help with the vulnerability. Very fast contact.

    18 January, 2021

     wandelzoek Wandelzoekpagina from Wandelzoekpagina:

Thanks for finding a vulnerability on the website. Thanks to your tip, I could repair the issue and keep the website safe

    17 January, 2021

     eduardo_sales Eduardo Sales from Papo de Gordo:

Praveen was very helpful in providing information about a security issue in our site. With his help, we were able to correct eveything and keep our site safe.

    15 January, 2021

     mhmitu Mihai from Engie:

Hi Praveen, Thanks for the help with the vulnerability. Very fast and friendly contact.

    14 January, 2021

     SilensStudio Simon from PlayDay:

Thank you very much for informing us about our access vulnerability! The world needs more good guys like you! A+!

    13 January, 2021

     mailtest15 mailtest from mailtest:

Thanks for the help with the vulnerability. Friendly and fast contact

    13 January, 2021

     thailandunique Lee from Thailand Unique:

Thank you very much for bringing a website vulnerability to my attention.

    12 January, 2021

     Eginity Scott from Eginity:

Thanks for pointing out a public phpinfo();

    6 January, 2021

     nixonson4 nixonson from LOOM:

Very fast response, provided us with all the detailes. Keep up the good work!

    5 January, 2021

     SewSimpleBags Deb from not disclosed:

We were informed of a vulnerability via this site. Thank you to Praveen for telling us it existed.

    5 January, 2021

     feuerwehr_lich Marc from Feuerwehr Lich:

Helped us identifing a not needed file which privided information about underlying system. Thank you for your Work!

    4 January, 2021

     PingPlotter Nate from Pingman Tools:

Thanks a ton for finding a security vulnerability on our site. You definitely have our recommendation.

    4 January, 2021

     _holzmann Philip from Heimspiel:

Many thanks for finding a public "phpinfo();"

    3 January, 2021

     KabarettN KabarettN from Kabarett-News:

Cyber_World was very courteous and provided the information needed to solve the problem very quickly. Your work is much appreciated, sir!

    2 January, 2021

     KabarettN KabarettN from Kabarett-News:

Cyber_World was very courteous and provided the information needed to solve the problem very quickly. Your work is much appreciated, sir!

    29 December, 2020

     Technologywibe Jake from Techwibe:

Helped us to find the issue and our devs was able to fix it. Thanks for your fast replies and reporting the issue.

    29 December, 2020

     nglCasanova Angel :

Praveen reported a minor security issue and we could fix it immediately. Thanks a lot for letting us know!

    24 December, 2020

     Teaviews SFINGLE from CB:

Very quick communication and very helpful. Thank you and have a great year!

    24 December, 2020

     JVos63 Jürgen Voskuhl from itcv GmbH:

Kurze Reaktionszeit, klare Hinweise auf die Probleme. Deshalb meine Empfehlung & ein dickes Dankeschön!

    22 December, 2020

     spinetraknet Renzo from hsk1830.de:

very quick response helped us fix the issue very quickly

    21 December, 2020

     SaurosVerlag Sebastian from Sauros Verlag:

Thank you very much for your help. And to let us know how we keep our website safe. Good job!

    21 December, 2020

     JoJoFunParties Andy Wood from JoJoFun:

Praveen found a PHP file on our site that posed a security risk and generously informed us by email. The file has since been removed. Thanks so much!

    20 December, 2020

     hair_xtensions Pete from Hairx:

Thanks for showing us we had a vulnerability in our files, most appreciated!

    18 December, 2020

     kayopepe1 Sascha :

Thanks for reporting the issue!

    17 December, 2020

     PressBahn Armin from Preßnitztalbahn:

Thank you for the report, which we were not aware of and which we were able to fix in a few moments. A big help!

    17 December, 2020

     teezeh Thomas :

Praveen reported a minor security issue which I could then easily fix by deleting an obsolete file. Thanks for the professional disclosure.

    16 December, 2020

     reikemgmbh Stefan from Reikem IT Systemhaus:

Praveen reported a minor security issue and we could fix it immediately. Thanks a lot for letting us know!

    16 December, 2020

     uvx_bln Administrator from Anonymous:

Many thanks for reporting the issue. Once the issue was known, it could be solved within seconds.

    16 December, 2020

     Lord_iMac Elmar from City Schutz GmbH:

Thanks for your report. It was a simple fix but security improvement. Good job!

    14 December, 2020

     knoell123 Bernhard from anonymous:

Thank you very much for your report. Thanks to your help we were able to solve the problem very quickly

    14 December, 2020

     knoell123 Bernhard from Anonymous:

Thank you very much for your report. Thanks to your help we were able to solve the problem very quickly.

    12 December, 2020

     odieng odieng from Bnest:

Thanks for pointing out the vulnerability. I appreciate it!

    11 December, 2020

     Fabulous_Vegan fabulous.ch :

Thank you very much for your bug report. It was fixed within a few seconds. Thank you for bringing it to our attention :)

    9 December, 2020

     krupicka_pavel Pavel Krupicka from Winternet:

Good job, thanks you very much for your report. The patch took a moment only, but it was necessary.

    9 December, 2020

     DWTech3 Alex Y. from Hypepoint Co.:

Thanks for the report on the issues. Although the issues were simple fixes but the researcher was able to catch them and report the issues with details in a professional manner. Highly recommended!

    8 December, 2020

     fuzzy_dnlp Webmaster from Anonymous:

Honorable work. Thanks for reporting the error. We received a very polite & quick response with details and were able to fix the error within minutes.

    6 December, 2020

     cathouseotkings Webmaster from The Cat House on the Kings:

Thanks for the report. Tech Support had created the vulnerablity while investigating a problem for us which we probably wouldn't have noticed for a while.

    6 December, 2020

     shunn Bill from Sinister Regard Publishers:

Thank you so much for your report. It was a simple matter to fix, but we never would have noticed the vulnerability without your input and advice.

    2 December, 2020

     Sebasti53438355 Seb from hrworks:

Nice contact, thanks for the report!

    2 December, 2020

     rockpapercynic Peter Chiykowski from Rock Paper Cynic:

Thanks for the report and recommendation! Fixed!

    1 December, 2020

     cyber_pramod lozan from Freelance:

Very polite and Knowledgeable reasearch. He provided me much detailsthat i was able to reproduce vulnerability and patch it with the help of mitigation steps. I recommend this specialist

    25 November, 2020

     nikitsinelnikov Nikita from ultimatemember.com:

Thanks for your report! We have fixed the issue.

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:	286658
Total reports on VIP sites:	2031
Total patched vulnerabilities:	45494
Total vulnerabilities on Hold (Open Bug Bounty):	35663
Recommendations received:	96
Active since:	22.10.2021
Top Security Researcher Awards:	Top Security Researcher of the Month Top Security Researcher of the Month Top Security Researcher of the Month
Top VIP Security Researcher Awards:	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

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