Concrete CMS 9.5.0 and below is vulnerable to authorization bypass in the Calendar Block since action_get_events does not check canView on the calendar which results in restricted event details being disclosed. 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 lalalala5678 for reporting.
Metrics
Affected Vendors & Products
References
History
Fri, 22 May 2026 13:30:00 +0000
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Thu, 21 May 2026 23:00:00 +0000
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Thu, 21 May 2026 21:00:00 +0000
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| Description | Concrete CMS 9.5.0 and below is vulnerable to authorization bypass in the Calendar Block since action_get_events does not check canView on the calendar which results in restricted event details being disclosed. 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 lalalala5678 for reporting. | |
| Title | 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 | |
| Weaknesses | CWE-425 | |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: ConcreteCMS
Published:
Updated: 2026-05-22T12:28:13.565Z
Reserved: 2026-05-09T00:57:15.214Z
Link: CVE-2026-8205
Updated: 2026-05-22T12:28:09.716Z
Status : Received
Published: 2026-05-21T21:16:33.650
Modified: 2026-05-21T21:16:33.650
Link: CVE-2026-8205
No data.
OpenCVE Enrichment
Updated: 2026-05-21T22:45:21Z