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Description

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

PUBLISHED Reserved 2026-02-22 | Published 2026-03-04 | Updated 2026-03-04 | Assigner ConcreteCMS




LOW: 2.3CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Problem types

CWE-352 Cross-Site Request Forgery (CSRF)

Product status

Default status
unaffected

5 (git) before 9.4.8
unaffected

Credits

z3rco reporter

References

github.com/concretecms/concretecms/pull/12826

documentation.concretecms.org/...n-history/948-release-notes

cve.org (CVE-2026-2994)

nvd.nist.gov (CVE-2026-2994)

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