CVE-2026-32258 Winter: Stored XSS through Editor Settings custom styles

Winter is a free, open-source content management system CMS based on the Laravel PHP framework. From 1.2.10 through 1.2.12, authenticated backend users with the backend.manageeditor permission can store custom Markup Styles that are compiled by the LESS parser and rendered without sanitization on...

CVE-2026-32257 Winter: Stored XSS through Brand Settings custom styles

Winter is a free, open-source content management system CMS based on the Laravel PHP framework. Prior to 1.2.13, custom CSS supplied through the Brand Settings Styles field by a backend user with the backend.managebranding permission is compiled by the LESS parser and rendered without sanitizatio...

CVE-2026-32257

Winter CMS is an open-source content management system based on the Laravel PHP framework. Prior to 1.2.13 , custom CSS supplied through the Brand Settings Styles field by a user with the backend.manage_branding permission was compiled by the LESS CSS parser and rendered without sanitization on e...

EUVD-2026-66631

Winter CMS is a content management system built on the Laravel PHP framework. In versions prior to 1.2.13, the backend did not validate the handler name submitted through the form postback handler POST field, allowing an authenticated backend user to invoke arbitrary controller methods, including...

CVE-2026-35445

Winter CMS versions prior to 1.2.13 contained an authorization bypass in the backend's form postback handler dispatch. The _handler POST field was passed directly to the handler dispatcher without validation, unlike AJAX requests which enforced the on[A-Z][\w+]* pattern. This allowed any authenti...

CVE-2026-35445 Winter: Authenticated backend users can bypass Users controller permission checks

Winter CMS is a content management system built on the Laravel PHP framework. In versions prior to 1.2.13, the backend did not validate the handler name submitted through the form postback handler POST field, allowing an authenticated backend user to invoke arbitrary controller methods, including...

CVE-2026-35445 Winter: Authenticated backend users can bypass Users controller permission checks

Winter CMS is a content management system built on the Laravel PHP framework. In versions prior to 1.2.13, the backend did not validate the handler name submitted through the form postback handler POST field, allowing an authenticated backend user to invoke arbitrary controller methods, including...

CVE-2026-79774

Winter CMS versions before 1.2.13 contain an incomplete fix for a Twig sandbox escape vulnerability in System\Twig\SecurityPolicy that allows authenticated backend users with template-editing permissions to bypass sandbox restrictions. Attackers can exploit method forwarding through Eloquent...

CVE-2026-79773

Winter CMS before 1.2.13 contains a local file inclusion vulnerability in the JavascriptImporter filter that allows authenticated users with cms.manageassets permission to disclose arbitrary server-readable files by placing =include or =require directives in theme JavaScript assets. Attackers can...

CVE-2026-79773

Winter CMS before 1.2.13 is affected by a local file inclusion vulnerability in the JavascriptImporter filter . Authenticated users holding the cms.manage_assets permission can embed =include or =require directives in theme JavaScript assets, referencing files outside the theme directory (e.g., ....

EUVD-2026-65531

Winter CMS before 1.2.13 contains a local file inclusion vulnerability in the JavascriptImporter filter that allows authenticated users with cms.manageassets permission to disclose arbitrary server-readable files by placing =include or =require directives in theme JavaScript assets. Attackers can...

CVE-2026-79774 Winter CMS before 1.2.13 Twig Sandbox Escape via SecurityPolicy

Winter CMS versions before 1.2.13 contain an incomplete fix for a Twig sandbox escape vulnerability in System\Twig\SecurityPolicy that allows authenticated backend users with template-editing permissions to bypass sandbox restrictions. Attackers can exploit method forwarding through Eloquent...

CVE-2026-79773 Winter CMS before 1.2.13 Local File Inclusion via JavaScript

Winter CMS before 1.2.13 contains a local file inclusion vulnerability in the JavascriptImporter filter that allows authenticated users with cms.manageassets permission to disclose arbitrary server-readable files by placing =include or =require directives in theme JavaScript assets. Attackers can...

CVE-2026-79774

Winter CMS versions before 1.2.13 contain an incomplete fix for a Twig sandbox escape in System\Twig\SecurityPolicy. Authenticated backend users with template-editing permissions can bypass sandbox restrictions by exploiting method forwarding through Eloquent models and query builders (e.g., save...

CVE-2026-79773 Winter CMS before 1.2.13 Local File Inclusion via JavaScript

Winter CMS before 1.2.13 contains a local file inclusion vulnerability in the JavascriptImporter filter that allows authenticated users with cms.manageassets permission to disclose arbitrary server-readable files by placing =include or =require directives in theme JavaScript assets. Attackers can...

CVE-2026-79773 Winter CMS before 1.2.13 Local File Inclusion via JavaScript

Winter CMS before 1.2.13 contains a local file inclusion vulnerability in the JavascriptImporter filter that allows authenticated users with cms.manageassets permission to disclose arbitrary server-readable files by placing =include or =require directives in theme JavaScript assets. Attackers can...

EUVD-2026-65532

Winter CMS versions before 1.2.13 contain an incomplete fix for a Twig sandbox escape vulnerability in System\Twig\SecurityPolicy that allows authenticated backend users with template-editing permissions to bypass sandbox restrictions. Attackers can exploit method forwarding through Eloquent...

CVE-2026-79774 Winter CMS before 1.2.13 Twig Sandbox Escape via SecurityPolicy

Winter CMS versions before 1.2.13 contain an incomplete fix for a Twig sandbox escape vulnerability in System\Twig\SecurityPolicy that allows authenticated backend users with template-editing permissions to bypass sandbox restrictions. Attackers can exploit method forwarding through Eloquent...

Winter: Reflected XSS through the search query parameter in the backend Table widget

Impact Affected versions of Winter CMS render the search query parameter without HTML encoding inside a block in the backend Table widget partial modules/backend/widgets/table/partials/table.php: php value="" is an HTML raw-text context, so the surrounding value="…" attribute quoting is not a...

Winter: CSRF through AJAX handler names reachable as backend page actions

Impact Affected versions of Winter CMS allow a backend AJAX handler to be invoked by a plain top-level GET navigation with no CSRF token. Backend\Classes\Controller::actionExists accepted any public method on a controller as a page action, so handler-shaped names were never reserved from URL...