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21,731 researchers, 1281 honor badges

kongwenbin | Security Researcher Profile

Security researcher kongwenbin has already helped fix 139 vulnerabilities.

Researcher reputation:  40

Real name:

About me:
Hello there! I am a security researcher from Singapore. I hunt for bugs during my own free time to learn and become better in my skills and expertise towards web security.

I report any identified bugs to organisations around the world, free of charge! It is my way of contributing towards a safer internet. :)

NOTE #1: I DO NOT USE ANY INTRUSIVE TOOLS. Only Firefox web browser and my brain.

NOTE #2: All of my reports have ABSOLUTELY NOTHING to do with my employer in any possible ways.

How to contact me:
If I reported a bug on your website, please reach out to me via Twitter (Direct Message is Open to all) so that we can fix it together to protect your users.

Alternative Contacts:
Once again, please contact me directly if you needed help to fix the bugs.

Experience in Application Security
over 5 years

Award / Bug Bounty I prefer:
To reward me for my effort (optional):
- Coffee money (any amount to
- Write a Recommendation on my profile (it's free!)
- Hall of Fame
- Acknowledgement Letters

Halls of Fame:
As of 2018, over 50 organizations have already officially acknowledged my effort in one of the ways mentioned above and I appreciate it! It was an honor working with them!

Follow me on:

Recommendations and Acknowledgements

@nidapo5     17 May, 2018
    Twitter nidapo5 Nick Porter from 5th Dunstable Scout Group:
@kongwenbin has been very helpful in finding two vulnerabilities on our website, and reporting them clearly and promptly, so they could be fixed. Thank you!
@kevag_telekom     7 May, 2018
    Twitter kevag_telekom Diana Guenzel from KEVAG Telekom:
Thank you @kongwenbin for your PoC and good work!
@ISOatUO     17 December, 2017
    Twitter ISOatUO Jim Cheetham from University of Otago:
Thanks to @kongwenbin, who very quickly sent a clear PoC that identified the vulnerability.

Please login via Twitter to add a recommendation

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:209
Total reports on VIP sites:19
Total patched vulnerabilities:139
Recommendations received:3
Active since:26.09.2017

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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How to bypass mod_security (WAF)
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sql injection to bypass Mod_Security
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Create encoded sql payloads

  Recent Recommendations

@_mrjd0g_     4 March, 2021
    Twitter _mrjd0g_:
Thank you for the report and responding so quickly to our request for more information, it helped us track the issue down and fix it. Appreciate the work you do.
@_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.