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CVE-2026-81894

🗓️ 15 Sep 2026 16:35:37Reported by ConcreteCMSType 
cve
 cve
🔗 web.nvd.nist.gov👁 33 Views🌐 WEB

Stored DOM-based XSS in Concrete CMS 9.5.2 and below via Gallery Caption field by page editors.

Related
Detection
Affected
Refs
Paths
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": "9.5.2",
        "versionType": "git"
      }
    ],
    "defaultStatus": "unaffected"
  }
]
ParameterPositionPathDescriptionCWE
captionnestedconcrete/js/features/imagery/frontend.jsStored DOM-based XSS in the Gallery block caption field where the caption is parsed as HTML by the lightbox script, enabling script execution in visitors' browsers.CWE-79, CWE-89

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22 Sep 2026 19:16Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.15.4
CVSS 48.5
EPSS0.00237
SSVC
33