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About this site

Concrete5

By Concrete CMS Vulnerability disclosure program on Self-hosted concretecms.com

Accepting reports
Go to program Website
Top reward
No cash rewards
Top severity paid
Not published
Assets in scope
3
Public CVEs
0
Last change
No changes yet

At a glance

What to know before you start testing.

No cash rewards
A disclosure program: you report for credit, not money.
Report by email
[email protected]
No safe harbor
No promise about legal action.
Replies within 5 days
As the policy promises.
No public write-ups
Keep findings private.

Rewards

What the company's own policy page says it pays.

This program does not pay cash rewards.

Pays cash
No We've got some limited swag and lots of honor for those who are the first to submit an issue related to the core software, but no cash.
Response
Within 5 days We will do our best to respond to clear, understandable, reports within 5 days on whether we deem your submission to be a unique vulnerability.

Summarised with AI from the company's policy, read 12 Nov 2026, and checked word for word against it. Read the original

Scope

3 assets you may test, 8 excluded.

Domains 2

  • concretecms.com
  • github.com

Source code 1

  • Concrete Core software, https://github.com/concretecms/concretecms
Out of scope (8)
  • 3d Party libraries
  • CSRF Logout
  • Default Credentials
  • Self DoS capability
  • Server configuration issues
  • Stuff Built by other People using Concrete
  • Vulnerabilities for Concrete (concrete5) marketplace products created by the open source community
  • Websites using our hosting services which we did not build and continue to maintain

Rules

What the policy asks of you, and the bug types it won't reward, quoted from Concrete5's policy. "We" in these lines means the program, not this site.

While testing

  • Please install a local copy of Concrete.
  • Beating on our trial servers or our websites will not be well-received.
  • please include the word "crayons" somewhere in your report
  • If you do not, your report will be closed as invalid automatically by HackerOne.
  • Check the NIST page where all CVEs related to the Concrete core codebase are listed.
  • If the vulnerability you are about to report already has a CVE, please help out the community by NOT submitting a duplicate.
  • Reports are accepted in English only.

Not accepted

  • Server configuration issues
  • Default Credentials
  • CSRF Logout
  • Self DoS capability
  • 3d Party libraries
  • Stuff Built by other People using Concrete
  • Vulnerabilities for Concrete (concrete5) marketplace products created by the open source community
  • Websites using our hosting services which we did not build and continue to maintain

Summarised with AI from the company's policy, read 12 Nov 2026, and checked word for word against it. Read the original

Changes

Tracked since 11 Nov 2026. Last checked 5 hours ago.

No changes yet. When the rewards or scope move, you will see it here and in the RSS feed.

Public CVEs

Published vulnerabilities in this vendor's products, from the NVD.

Search NVD

No CVEs matched yet. We match NVD records by vendor name, so products sold under another name can be missing.