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CVE-2026-85386 Concrete CMS before 9.5.4 stored is vulneratble to cross-site scripting via unauthenticated XML/XSLT file upload in the Form Block

🗓️ 16 Sep 2026 16:33:53Reported by ConcreteCMSType 
cvelist
 cvelist
🔗 www.cve.org👁 5 Views

Stored XSS in Concrete CMS before 9.5.4 via unauthenticated XML/XSLT upload in Form Block.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-85386
16 Sep 202616:33
cve
euvd
EUVD
EUVD-2026-80879
16 Sep 202616:33
euvd
nvd
NVD
CVE-2026-85386
16 Sep 202617:18
nvd
[
  {
    "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": "9.5.3",
        "versionType": "git"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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