Description
Winter CMS is a content management system built on the Laravel PHP framework. From 1.0.319 until 1.2.14, Backend\Classes\Controller::actionExists() accepts public handler-shaped methods as page actions, so a top-level GET request can invoke state-changing backend AJAX handlers without a CSRF token. Because backend routes use Route::any, CSRF validation skips GET, and the default SameSite=Lax session cookie is sent on cross-site navigation, an unauthenticated attacker can induce an authorized backend user to follow a link such as /backend/system/eventlogs/index_onEmptyLog. Affected handlers in the backend, CMS, and system modules can truncate logs, reset settings, alter backend user state, or delete CMS templates, while URL path segments can select a target record. This issue is fixed in version 1.2.14.
Published: 2026-11-10
Score: 6.1 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Github GHSA Github GHSA GHSA-p2ch-c2c3-4xm5 Winter: CSRF through AJAX handler names reachable as backend page actions
History

Thu, 12 Nov 2026 22:15:00 +0000

Type Values Removed Values Added
First Time appeared Wintercms
Wintercms winter
Vendors & Products Wintercms
Wintercms winter

Tue, 10 Nov 2026 20:15:00 +0000

Type Values Removed Values Added
Description Winter CMS is a content management system built on the Laravel PHP framework. From 1.0.319 until 1.2.14, Backend\Classes\Controller::actionExists() accepts public handler-shaped methods as page actions, so a top-level GET request can invoke state-changing backend AJAX handlers without a CSRF token. Because backend routes use Route::any, CSRF validation skips GET, and the default SameSite=Lax session cookie is sent on cross-site navigation, an unauthenticated attacker can induce an authorized backend user to follow a link such as /backend/system/eventlogs/index_onEmptyLog. Affected handlers in the backend, CMS, and system modules can truncate logs, reset settings, alter backend user state, or delete CMS templates, while URL path segments can select a target record. This issue is fixed in version 1.2.14.
Title Winter CMS: CSRF through AJAX handler names reachable as backend page actions
Weaknesses CWE-352
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:H'}


Subscriptions

Wintercms Winter
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-11-12T18:02:03.356Z

Reserved: 2026-11-09T21:22:55.599Z

Link: CVE-2026-125339

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-11-10T20:19:08.410

Modified: 2026-11-12T22:18:51.470

Link: CVE-2026-125339

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-13T14:45:21Z

Weaknesses