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Tracking
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| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-prxr-vjgc-2cq9 | Concrete CMS is Vulnerable to Cross-Site Request Forgery |
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 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Thu, 21 May 2026 23:00:00 +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 emits a CSRF token in the local_available_update.php view ($token->output('do_update')) but the corresponding do_update() method in concrete/controllers/single_page/dashboard/system/update/update.php never calls $this->token->validate('do_update'). The form is rendered as a POST form, meaning the token reaches the browser, but because the controller discards it without verification, an attacker can craft a cross-site POST that triggers a core CMS update to an attacker-specified version string. In order to be vulnerable, theictim must be passing canUpgrade()anda valid update version must be present under DIR_CORE_UPDATES. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 7.5 with vector CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N. Thanks https://github.com/maru1009 for reporting. | |
| Title | CSRF token is not validated in the core CMS update controller for Concrete CMS 9.5.0 and below | |
| Weaknesses | CWE-352 CWE-829 |
|
| References |
| |
| Metrics |
cvssV4_0
|
Status: PUBLISHED
Assigner: ConcreteCMS
Published:
Updated: 2026-05-22T13:23:49.586Z
Reserved: 2026-05-12T18:07:11.189Z
Link: CVE-2026-8428
Updated: 2026-05-22T13:23:43.275Z
Status : Analyzed
Published: 2026-05-21T21:16:34.387
Modified: 2026-06-17T11:03:55.870
Link: CVE-2026-8428
No data.
OpenCVE Enrichment
Updated: 2026-05-21T22:45:21Z
Github GHSA