Description
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 LESS parser and rendered without sanitization on every backend page, allowing stored cross-site scripting against backend users. This issue is fixed in version 1.2.13.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| wintercms | winter | < 1.2.13 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Packagist | winter/wn-backend-module | < 1.2.13 | 1.2.13 | GHSA-v7cf-8gh9-gxmj |