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.
References (4)
Core 4
Core References
Exploit, Mailing List, Third Party Advisory x_refsource_misc
http://lists.openwall.net/full-disclosure/2017/09/14/2
Third Party Advisory x_refsource_misc
https://github.com/silverstripe/silverstripe-framework/commit/25b77a2ff8deabe8e8894002b9a5647eaec27b0a
Vendor Advisory x_refsource_misc
https://docs.silverstripe.org/en/3/changelogs/3.6.1
Third Party Advisory x_refsource_misc
https://github.com/silverstripe/silverstripe-installer/commit/c25478bef75cc5482852e80a1fa6f1f0e6460e39
Scores
CVSS v3
6.1
EPSS
0.0037
EPSS Percentile
59.2%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Details
CWE
CWE-79
Status
published
Products (2)
silverstripe/cms
0 - 3.6.1Packagist
silverstripe/silverstripe
< 3.6.0
Published
Sep 15, 2017
Tracked Since
Feb 18, 2026