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827,780 coordinated disclosures
466,688 fixed vulnerabilities
1275 bug bounties with 2,433 websites
21,684 researchers, 1280 honor badges

error404 | Security Researcher Profile

Security researcher error404 has already helped fix 582 vulnerabilities.

Researcher reputation:  280

Real name:
Manav Doshi

About me:
A Security Researcher

How to contact me:
[email protected]

Alternative Contacts:
[email protected]

Certifications & Diplomas:
CEH(Certified Ethical Hacker)
CPTE(Cetified Penetration Tester Engineer)

Experience in Application Security
1-3 years

Award / Bug Bounty I prefer:
I appreciate the following -

Bounty (PayPal)
Swag (T-Shirt, Goodies)
Recommendation here in openbugbounty
or just a thanks!

Follow me on:

Recommendations and Acknowledgements

@A1Dummy     25 April, 2020
    Twitter A1Dummy René from
Thanks for finding the issue on our site and for making the web more secure!
@MartySoft     23 April, 2020
    Twitter MartySoft liquidmaker :
Thank you Error404 to find the XSS vulnerability on my side.
Communication was clear and friendly. Thank you for your personal work.
@podofcoffee     6 February, 2020
    Twitter podofcoffee Orbach from Booksprice:
Thank you for reporting a XSS vulnerability on our site. We were able to reproduce and fix it within 1 day, and fix it. Thanks for the clear communication..
@eingemaischt     31 January, 2020
    Twitter eingemaischt Philipp from IMI:
Thank you for reporting a XSS vulnerability on our portal. We were able to reproduce and fix it within 2 days.
@vavideode     30 January, 2020
    Twitter vavideode Vavideo from Vavideo:
Thank you for helping improving Vavideo! The xss vulnerability is fixed now.
@USM_au     29 January, 2020
    Twitter USM_au Peter Green from USM Pty Ltd:
Manav alerted us to a vulnerability on a server which we were able to research and rectify. Thanks for the detailed information about the problem.
@givemethespi     28 January, 2020
    Twitter givemethespi Renaud from Dogfinance:
Thanks a lot to Manav who discovered XSS vulnerabilities on our website. Very professional, his report was detailed and efficient.
@fredli74     30 July, 2020
    Twitter fredli74 Fredrik from Sonic Charge:
Thank you, Manav, for finding and explaining an XSS vulnerability we had on our site. Very nice and professional! Fixed and verified the same day.
@ElliotKendall1     28 January, 2020
    Twitter ElliotKendall1 Elliot Kendall from Emory University:
Thanks for reporting an information disclosure issue on our website.
@Error4071686411     12 January, 2020
    Twitter Error4071686411 Secure from
Thankyou for reporting xss vulnerabilties on the website.

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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:2010
Total reports on VIP sites:83
Total patched vulnerabilities:582
Total vulnerabilities on Hold (Open Bug Bounty):57
Recommendations received:21
Active since:23.10.2019

Open Bug Bounty Certificate

Researcher Certificate

No posts in blog yet

Reported Vulnerabilities

All Submissions VIP Submissions

  Latest Patched


  Latest Blog Posts

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Sysadminotaur nº88
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Higher Submissions Quality Standard
25.12.2020 by _Y000_
How to bypass mod_security (WAF)
10.12.2020 by _Y000_
sql injection to bypass Mod_Security
10.12.2020 by _Y000_
Create encoded sql payloads

  Recent Recommendations

@_lhordd     3 March, 2021
    Twitter _lhordd:
Thanks for helping me with the flaws in my site. The best work i’ve ever seen.
@_Kkommi     3 March, 2021
    Twitter _Kkommi:
Thanks for reporting xss in my site.
@_Kkommi     3 March, 2021
    Twitter _Kkommi:
@CERT_rlp     1 March, 2021
    Twitter CERT_rlp:
The team of CERT-rlp would like to thank Cyber_India for a responsible and coordinated disclosure of vulnerabilities.
@CERT_rlp     1 March, 2021
    Twitter CERT_rlp:
The team of CERT-rlp would like to thank Cyber_India for a responsible and coordinated disclosure of vulnerabilities