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High 8.3
Winter CMS: ImportExportController AJAX handlers bypass granular import/export permission gate
Winter CMS is a content management system built on the Laravel PHP framework. Prior to 1.2.14, the ImportExportController behavior applies userHasAccess() only to the import() and export() page actions, while Backend\Classes\Controller::execAjaxHandlers() dis…
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High 8.1
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.manage_editor permission can store custom Markup Styles that are compiled by the LESS pa…
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High 8.1
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.manage_branding permission is compiled by the LES…
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High 7.1
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 …
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High 8.3
Winter: ImportExportController AJAX handlers bypass granular import/export permission gate
### Impact Affected versions of Winter CMS did not enforce the `ImportExportController` behavior's granular access control on the handlers that actually perform the work. The behavior supports per-operation access control through the `import[permissions]` and…