Description
SilverStripe CMS before 3.6.1 has XSS via an SVG document that is mishandled by (1) the Insert Media option in the content editor or (2) an admin/assets/add pathname, as demonstrated by the admin/pages/edit/EditorToolbar/MediaForm/field/AssetUploadField/upload URI, aka issue SS-2017-017.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Packagist | silverstripe/cms | < 3.6.1 | 3.6.1 | GHSA-j696-6m57-mcrv |
References
- http://lists.openwall.net/full-disclosure/2017/09/14/2
- https://github.com/silverstripe/silverstripe-framework/commit/25b77a2ff8deabe8e8894002b9a5647eaec27b0a
- https://docs.silverstripe.org/en/3/changelogs/3.6.1
- https://github.com/silverstripe/silverstripe-installer/commit/c25478bef75cc5482852e80a1fa6f1f0e6460e39