CVE-2026-8435 (GCVE-0-2026-8435)

Vulnerability from cvelistv5 – Published: 2026-05-21 21:22 – Updated: 2026-05-22 12:31
VLAI
Title
Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery (CSRF) at concrete/controllers/backend/file approveVersion()
Summary
Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery (CSRF) at concrete/controllers/backend/file approveVersion(). 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.
Severity
2.3 (Low)
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
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-22 12:31 UTC
CWE
  • CWE-352 - Cross-Site request forgery (CSRF)
  • CWE-1275 - Sensitive cookie with improper SameSite attribute
Assigner
ConcreteCMS CNA under the mitre root
CNA scorecard B 84/100 over 111 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Concrete CMS Concrete CMS Affected: 9.0 , ≤ 9.5.0 (git)
guessed Create a notification for this product.
Credits
Yonatan Drori (Tenzai)
Show details on NVD website
To clipboard 

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