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CVE-2026-6826

🗓️ 21 May 2026 20:55:21Reported by ConcreteCMSType 
cve
 cve
🔗 web.nvd.nist.gov👁 94 Views🌐 WEB

Unauthenticated file usage disclosure in Concrete CMS 9.5.0 and earlier due to missing usage controller permission check.

Related
Detection
Affected
Refs
Paths
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-6826
21 May 202620:55
–attackerkb
circl
Circl
CVE-2026-6826
24 Aug 202606:44
–circl
cnnvd
CNNVD
Concrete CMS 信息泄露漏洞
21 May 202600:00
–cnnvd
cvelist
Cvelist
CVE-2026-6826 Concrete 9.5.0 and below has file usage disclosure via missing permission check in Usage controller
21 May 202620:55
–cvelist
euvd
EUVD
EUVD-2026-31344
21 May 202620:55
–euvd
github
Github Security Blog
Concrete CMS is vulnerable to unauthenticated file usage disclosure
21 May 202621:30
–github
mend
Mend
CVE-2026-6826
21 May 202620:55
–mend
metasploit
Metasploit
Concrete CMS Unauthenticated File Usage Disclosure
21 May 202600:00
–metasploit
nuclei
Nuclei
Concrete CMS <9.5.1 - Unauthenticated File Usage Disclosure
17 Oct 202602:05
–nuclei
nvd
NVD
CVE-2026-6826
21 May 202621:16
–nvd
Rows per page
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",
        "lessThanOrEqual": "9.5.0",
        "versionType": "git"
      }
    ],
    "defaultStatus": "unaffected"
  }
]
ParameterPositionPathDescriptionCWE
fIDpath/ccm/system/dialogs/file/usage/{fID}Unauthenticated disclosure of file usage via missing view permission check on the file usage dialog.CWE-200

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23 Jul 2026 16:10Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.15.3
CVSS 46.9
EPSS0.01282
SSVC
94