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CVE-2026-81901 Concrete CMS 9.2.0 to 9.5.2 is vulnerable to stored XSS due to missing authorization in the `PUT /pages/{cID}` endpoint

🗓️ 14 Sep 2026 20:38:54Reported by ConcreteCMSType 
cvelist
 cvelist
🔗 www.cve.org👁 10 Views

Stored XSS in Concrete CMS 9.2.0-9.5.2; missing auth on PUT /pages/{cID} lets editors inject JS.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-81901
14 Sep 202620:38
cve
euvd
EUVD
EUVD-2026-78089
14 Sep 202620:38
euvd
nvd
NVD
CVE-2026-81901
14 Sep 202621:17
nvd
ptsecurity
Positive Technologies
PT-2026-91563
14 Sep 202600:00
ptsecurity
[
  {
    "vendor": "Concrete CMS",
    "product": "Concrete CMS",
    "collectionURL": "https://github.com/concretecms/concretecms",
    "repo": "https://github.com/concretecms/concretecms",
    "versions": [
      {
        "status": "affected",
        "version": "9.2.0",
        "lessThanOrEqual": "9.5.2",
        "versionType": "git"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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