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CVE-2026-81905 Concrete CMS below 9.5.3 does not enforce validation-hash type on redemption, allowing a hash issued for one purpose to be redeemed for another.

🗓️ 10 Sep 2026 23:16:31Reported by ConcreteCMSType 
cvelist
 cvelist
🔗 www.cve.org👁 25 Views

Concrete CMS below 9.5.3 lets a validation hash for one purpose be redeemed for another purpose.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-81905
10 Sep 202623:56
circl
cve
CVE
CVE-2026-81905
10 Sep 202623:16
cve
euvd
EUVD
EUVD-2026-75887
11 Sep 202600:31
euvd
nvd
NVD
CVE-2026-81905
11 Sep 202600:19
nvd
ptsecurity
Positive Technologies
PT-2026-89655
10 Sep 202600:00
ptsecurity
vulnrichment
Vulnrichment
CVE-2026-81905 Concrete CMS below 9.5.3 does not enforce validation-hash type on redemption, allowing a hash issued for one purpose to be redeemed for another.
10 Sep 202623:16
vulnrichment
[
  {
    "vendor": "Concrete CMS",
    "product": "Concrete CMS",
    "collectionURL": "https://github.com/concretecms/concretecms",
    "repo": "https://github.com/concretecms/concretecms",
    "versions": [
      {
        "status": "affected",
        "version": "5.0.0",
        "lessThanOrEqual": "9.5.2",
        "versionType": "git"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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