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TI-2021-05815 Aliases CVE-2021-22954GHSA-gr23-g276-xc73

Cross-site request forgery in https://github.com/concrete5/concrete5

Priority LOW 39CWE-352Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Tampering
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-352.

Summary

A cross-site request forgery vulnerability exists in Concrete CMS <v9 that could allow an attacker to make requests on behalf of other users.

Why it matters now

EPSS 0.00543 45th percentileScored 2026-11-07
Fix Fixed concrete5/concrete5 (Packagist): 9.0.0

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—https://github.com/concrete5/concrete5fixed in Concrete CMS v 9.0—No fix listedCNA
—concrete5/concrete5 (Packagist)before 9.0.09.0.0Patch availableGHSA-gr23-g276-xc73
  • https://github.com/concrete5/concrete5 Vendor— Affected fixed in Concrete CMS v 9.0 Fixed in — No fix listed CNA
  • concrete5/concrete5 (Packagist) Vendor— Affected before 9.0.0 Fixed in 9.0.0 Patch available GHSA-gr23-g276-xc73

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:concretecms:concrete_cms:*:*:*:*:*:*:*:*before 9.0VulnerableConcrete CMS
  • cpe:2.3:a:concretecms:concrete_cms:*:*:*:*:*:*:*:* Versions before 9.0 Vulnerable ·Concrete CMS

Remediation

  • Fix · GHSA-gr23-g276-xc73 concrete5/concrete5 (Packagist) Fixed in 9.0.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-22954
  2. 2026-10-03 Alias added: GHSA-gr23-g276-xc73

References

  • TI-2026-23602 ConcreteCMS v9.4.7 contains a Denial of Service (DoS) vulnerability in the File Manager… CVSS 3.1MEDIUM 6.5
  • TI-2023-23992 A Cross Site Scripting (XSS) vulnerability in Concrete CMS from versions 9.2.0 to 9.2.2… CVSS 3.1MEDIUM 5.4
  • TI-2023-26495 Concrete CMS before 8.5.13 and 9.x before 9.2.2 allows unauthorized access because… CVSS 3.1CRITICAL 9.8
  • TI-2026-14907 Missing authorization in Concrete CMS CVSS 4.0HIGH 8.7
  • TI-2022-06200 Cleartext transmission of sensitive information in https://github.com/concrete5/concrete5 CVSS 3.1CRITICAL 9.8
  • TI-2021-17294 An issue was discovered in Concrete CMS through 8.5.5. CVSS 3.1CRITICAL 9.8
See all 197 →

Sources