Input validation

2023-12-1220:15:00

PRIOn knowledge base

www.prio-n.com

umbraco cms

svg files

malicious upload

version vulnerability

server side validation

media hosting

7 High

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

13.3%

JSON

Umbraco is an ASP.NET content management system (CMS). Starting in version 7.0.0 and prior to versions 7.15.11, 8.18.9, 10.7.0, 11.5.0, and 12.2.0, 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. Versions 7.15.11, 8.18.9, 10.7.0, 11.5.0, and 12.2.0 contain a patch for this issue. Some workarounds are available. Implement the server side file validation or serve all media from an different host (e.g cdn) than where Umbraco is hosted.

CPENameOperatorVersion
umbraco_cmsge12.0.0
umbraco_cmslt12.2.0
umbraco_cmsge11.0.0
umbraco_cmslt11.5.0
umbraco_cmsge10.0.0
umbraco_cmslt10.7.0
umbraco_cmsge8.0.0
umbraco_cmslt8.18.9
umbraco_cmsge7.0.0
umbraco_cmslt7.15.11

Name	Operator	Version
umbraco_cms	ge	12.0.0
umbraco_cms	lt	12.2.0
umbraco_cms	ge	11.0.0
umbraco_cms	lt	11.5.0
umbraco_cms	ge	10.0.0
umbraco_cms	lt	10.7.0
umbraco_cms	ge	8.0.0
umbraco_cms	lt	8.18.9
umbraco_cms	ge	7.0.0
umbraco_cms	lt	7.15.11