Description
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 parser and rendered without sanitization on every backend page, allowing stored cross-site scripting. This issue is fixed in version 1.2.13.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| wintercms | winter | >= 1.2.10, < 1.2.13 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Packagist | winter/wn-backend-module | >= 1.2.10, < 1.2.13 | 1.2.13 | GHSA-vgp4-2fc4-qff2 |