CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 5.3. See the original NVD description below for full technical details.
CVE
CVE-2026-8204
Severity
MEDIUM
CVSS
5.3
EPSS
0.21%
Original NVD Description
Concrete CMS 9.5.0 and below is vulnerable to authorization Bypass in the Calendar Event Frontend Dialog which can allow cross-calendar data disclosure. A public calendar block can be used as a pivot point to access private calendar data. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 6.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N. Thanks Winston Crooker for reporting.
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