CVE-2026-2994

Concrete CMS below version 9.4.8 is subject to CSRF by a Rogue Administrator using the Anti-Spam Allowlist Group Configuration via group_id parameter which can leads to a security bypass since changes are saved prior to checking the CSRF token. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks z3rco for reporting

CVSS v3 6.8 MEDIUM

6.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://documentation.concretecms.org/9-x/developers/introduction/version-history/948-release-notes	Release Notes Patch Vendor Advisory
https://github.com/concretecms/concretecms/pull/12826	Exploit Issue Tracking Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:concretecms:concrete_cms:*:*:*:*:*:*:*:*

History

04 Mar 2026, 21:35

Type	Values Removed	Values Added
References	~~() https://documentation.concretecms.org/9-x/developers/introduction/version-history/948-release-notes -~~	() https://documentation.concretecms.org/9-x/developers/introduction/version-history/948-release-notes - Release Notes, Patch, Vendor Advisory
References	~~() https://github.com/concretecms/concretecms/pull/12826 -~~	() https://github.com/concretecms/concretecms/pull/12826 - Exploit, Issue Tracking, Vendor Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.8
First Time		Concretecms concrete Cms Concretecms
CPE		cpe:2.3:a:concretecms:concrete_cms::::::::

04 Mar 2026, 03:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-04 03:16

Updated : 2026-03-04 21:35

NVD link : CVE-2026-2994

Mitre link : CVE-2026-2994

CVE.ORG link : CVE-2026-2994

JSON object : View

Products Affected

concretecms

concrete_cms

CWE

CWE-352

Cross-Site Request Forgery (CSRF)

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