CVE-2026-8409

HIGH

Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery (CSRF) at concrete/controllers/dialog/logs/delete

Title source: cna
STIX 2.1

Description

Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery (CSRF) at concrete/controllers/dialog/logs/delete.  The 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:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Yonatan Drori (Tenzai) for reporting.

References (1)

Core 1

Scores

CVSS v3 8.8
EPSS 0.0002
EPSS Percentile 6.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-1275 CWE-352
Status published
Products (2)
Concrete CMS/Concrete CMS 9.0 - 9.5.0
concretecms/concrete_cms 9.0.0 - 9.5.1
Published May 21, 2026
Tracked Since May 22, 2026