CVE-2026-63179

Winter CMS (a Laravel-based PHP content management system) versions up to and including 1.2.12 allow authenticated backend users to disclose arbitrary files readable by the PHP process. The root cause is that the LESS parser (via the wikimedia/less.php integration in Winter Storm) was instantiate...

CVE-2026-63179 Winter: Local File Inclusion through @import directives in LESS compilation of backend customizable stylesheets and theme assets

Winter CMS is a content management system built on the Laravel PHP framework. In versions up to and including 1.2.12, authenticated backend users can disclose arbitrary files readable by the PHP process by injecting @import inline directives into LESS source that the backend compiles, because the...

Winter: Local File Inclusion through @import directives in LESS compilation of backend customizable stylesheets and theme assets

Impact Affected versions of Winter CMS allow authenticated backend users with the following permissions to disclose arbitrary files readable by the PHP process by injecting @import inline "" directives into LESS source that the backend compiles. Four entry points share the same root cause: - Bran...

Winter CMS Local File Inclusion through Server Side Template Injection

Impact Users with access to backend forms that include a ColorPicker FormWidget can provide a value that would then be included without further processing in the compilation of custom stylesheets via LESS. This had the potential to lead to a Local File Inclusion vulnerability. By default, only th...

GHSA-2X7R-93WW-CXRQ Winter CMS Local File Inclusion through Server Side Template Injection

Impact Users with access to backend forms that include a ColorPicker FormWidget can provide a value that would then be included without further processing in the compilation of custom stylesheets via LESS. This had the potential to lead to a Local File Inclusion vulnerability. By default, only th...

Winter Path Traversal Vulnerability

Winter is a free, open source, self-hosted CMS platform based on the Laravel PHP framework. A path traversal vulnerability exists in Winter versions prior to 1.2.4, which stems from a vulnerability that allows an attacker to include local files via a LESS compilation of the value provided to the...