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Tracking
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| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-x2fp-hj8c-mmxh | Concrete CMS is vulnerable to authorization bypass in the Calendar Event Frontend Dialog |
Tue, 26 May 2026 15:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:concretecms:concrete_cms:*:*:*:*:*:*:*:* | |
| Metrics |
cvssV3_1
|
Fri, 22 May 2026 13:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Thu, 21 May 2026 23:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Concretecms
Concretecms concrete Cms |
|
| Vendors & Products |
Concretecms
Concretecms concrete Cms |
Thu, 21 May 2026 21:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Concrete CMS 9.5.0 and below is vulnerable to Authorization Bypass in the Calendar Event Frontend Dialog | |
| Weaknesses | CWE-639 | |
| References |
| |
| Metrics |
cvssV4_0
|
Status: PUBLISHED
Assigner: ConcreteCMS
Published:
Updated: 2026-05-22T12:27:38.540Z
Reserved: 2026-05-09T00:11:45.659Z
Link: CVE-2026-8204
Updated: 2026-05-22T12:27:34.914Z
Status : Analyzed
Published: 2026-05-21T21:16:33.530
Modified: 2026-06-17T11:03:37.980
Link: CVE-2026-8204
No data.
OpenCVE Enrichment
Updated: 2026-05-21T23:15:17Z
Github GHSA