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CVE-2026-8205 Concrete CMS 9.5.0 and below is vulnerable to authorization bypass in Calendar Block since action_get_events does not check canView on the calendar

🗓️ 21 May 2026 20:57:49Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 2 Views

CVE-2026-8205: Concrete CMS Calendar Block bypasses authorization because action_get_events does not check canView, exposing restricted events.

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15 Jul 2026 01:49Current
6Medium risk
Vulners AI Score6
CVSS 46.3
EPSS0.00211
2