NetSight
low3.7

CVE-2023-49279

Stored XSS via SVG File Upload

Impact

#### Impact A user with access to the backoffice can upload SVG files that include scripts. If the user can trick another user to load the media directly in a browser, the scripts can be executed. #### Workaround Implement the server side file validation https://docs.umbraco.com/umbraco-cms/reference/security/serverside-file-validation or Serve all media from an different host (e.g cdn) that where umbraco is hosted

Affected packages

EcosystemPackageAffectedFixed in
nugetUmbraco.CMS>= 7.0.0, < 7.15.117.15.11

Affected products

VendorProductAffected versions
UmbracoUmbraco Cms
from 7.0.0 before 7.15.11
from 8.0.0 before 8.18.9
from 10.0.0 before 10.7.0
from 11.0.0 before 11.5.0
from 12.0.0 before 12.2.0

Weakness classification

References