CVE-2026-8409CWE-1275CWE-352

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

Low · published May 21, 2026

CVSS v4.0
2.3
EPSS
0%
Percentile
11.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
2.3 · LOW
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
EPSS
0.00214 · 11.1th percentile
Weaknesses
CWE-1275 · Sensitive Cookie with Improper SameSite Attribute; CWE-352 · Cross-Site Request Forgery (CSRF)
Published
2026-05-21T21:40Z
EPSS history
Timeline
  • 21 MAY 21:40Z
    Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery (CSRF) at concrete/controllers/dialog/logs/delete
    cvelistv5