What is GHSA-67hj-8239-cmf5?

GHSA-67hj-8239-cmf5 is a security advisory published by GitHub Security Advisories with Low severity. Concrete CMS is vulnerable to Cross Site Request Forgery (CSRF) at concrete/controllers/backend/file removeFavoriteFolder($id)

Which CVE IDs does GHSA-67hj-8239-cmf5 cover?

GHSA-67hj-8239-cmf5 covers the following CVE IDs: CVE-2026-8427. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

Which products are affected by GHSA-67hj-8239-cmf5?

GHSA-67hj-8239-cmf5 affects 1 product, including: composer/concrete5/concrete5:\u003e= 9.0.0RC1, \u003c 9.5.1.

GHSA-67hj-8239-cmf5Low

Concrete CMS is vulnerable to Cross Site Request Forgery (CSRF) at concrete/controllers/backend/file removeFavoriteFolder($id)

Vendor

GitHub Security Advisories

Published

May 22, 2026

Last Modified

June 24, 2026

🔗 CVE IDs covered (1)

CVE-2026-8427 →

📋 Description

Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery (CSRF) at concrete/controllers/backend/file removeFavoriteFolder($id).

🎯 Affected products1

composer/concrete5/concrete5:>= 9.0.0RC1, < 9.5.1

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-8427
https://documentation.concretecms.org/9-x/developers/introduction/version-history/951-release-notes
https://github.com/advisories/GHSA-67hj-8239-cmf5