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CVE-2026-81904 Concrete CMS before 9.5.3 is vulnerable to Missing Authorization in Stack/Container Sub-Block Asset Registration

🗓️ 08 Sep 2026 21:55:05Reported by ConcreteCMSType 
cvelist
 cvelist
🔗 www.cve.org👁 12 Views

Missing authorization in Concrete CMS below 9.5.3 exposes sub-block config to unauthenticated users.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-81904
8 Sep 202621:55
cve
euvd
EUVD
EUVD-2026-74282
9 Sep 202600:30
euvd
nvd
NVD
CVE-2026-81904
8 Sep 202622:19
nvd
[
  {
    "vendor": "Concrete CMS",
    "product": "Concrete CMS",
    "repo": "https://github.com/concretecms/concretecms",
    "versions": [
      {
        "status": "affected",
        "version": "5",
        "lessThanOrEqual": "9.5.2",
        "versionType": "git"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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