Cross Site Request Forgery Vulnerability in Concrete CMS by Concrete5
CVE-2026-8427

2.3LOW

Key Information:

Vendor

Concrete Cms

Status
Concrete Cms
Vendor
CVE Published:
21 May 2026

What is CVE-2026-8427?

Concrete CMS version 9 prior to 9.5.0 is susceptible to a Cross Site Request Forgery (CSRF) vulnerability affecting the file removeFavoriteFolder($id) controller. This vulnerability could allow an attacker to trick users into executing unwanted actions on the platform, compromising user interactions and potentially leading to unauthorized access or modifications. Developers and site administrators are urged to review the affected versions and implement necessary updates to safeguard against this exploit.

Affected Version(s)

Concrete CMS 9.0 <= 9.5.0

References

https://documentation.concretecms.org/9-x/developers/intr...
release-notes

CVSS V4

Score:
2.3
Severity:
LOW
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Yonatan Drori (Tenzai)
.