PT-2026-22864 · Unknown · Concrete Cms

Z3Rco · Published 2026-03-04 · Updated 2026-03-04 · CVE-2026-2994

Positive Technologies (AI Summary)

CVSS v3.1

6.8

Medium

Base vector

AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Concrete CMS versions prior to 9.4.8

Description Concrete CMS versions prior to 9.4.8 are susceptible to Cross-Site Request Forgery (CSRF) attacks initiated by a malicious administrator. The issue stems from the Anti-Spam Allowlist Group Configuration, specifically through manipulation of the group id parameter. This allows a security bypass, as changes are saved without proper CSRF token verification.

Recommendations Update Concrete CMS to version 9.4.8 or later.

Fix

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

CVE-2026-2994

GHSA-6MXW-2VHF-42G5

Affected Products

Concrete Cms

References · 11

• https://github.com/concretecms/concretecms/pull/12826 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-2994 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-2994 · Security Note
• https://documentation.concretecms.org/9-x/developers/introduction/version-history/948-release-notes · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-6mxw-2vhf-42g5 · Vendor Advisory
• https://github.com/concretecms/concretecms · Note
• https://t.me/cveNotify/154067 · Telegram Post
• https://twitter.com/CVEarity/status/2029168557595214185 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2029187882204778847 · Twitter Post
• https://twitter.com/cyberbivash/status/2029061301201186970 · Twitter Post
• https://t.me/CVEtracker/46273 · Telegram Post