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Concrete CMS is vulnerable to IDOR

🗓️ 22 May 2026 00:31:16Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 7 Views

Concrete CMS versions 9.5.0 and below are vulnerable to direct object reference via the /ccm/frontend/conversations/get_rating endpoint.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-8239
21 May 202621:00
attackerkb
cnnvd
CNNVD
Concrete CMS 安全漏洞
21 May 202600:00
cnnvd
cve
CVE
CVE-2026-8239
21 May 202621:00
cve
cvelist
Cvelist
CVE-2026-8239 Concrete CMS 9.5.0 and below is vulnerable to IDOR in '/ccm/frontend/conversations/get_rating'
21 May 202621:00
cvelist
euvd
EUVD
EUVD-2026-31349
22 May 202600:31
euvd
nvd
NVD
CVE-2026-8239
21 May 202622:16
nvd
osv
OSV
GHSA-2XP7-RPVC-PJWC Concrete CMS is vulnerable to IDOR
22 May 202600:31
osv
ptsecurity
Positive Technologies
PT-2026-42561
21 May 202600:00
ptsecurity
redhatcve
RedhatCVE
CVE-2026-8239
5 Jun 202619:24
redhatcve
snyk
Snyk
Missing Authorization
22 May 202600:31
snyk
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Vulners
Node
concrete5concrete5Range<9.5.1composer

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24 Jun 2026 21:08Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.15.3
CVSS 46.3
EPSS0.00195
SSVC
7