CVE-2023-49279

Umbraco CMS vulnerable to stored XSS via SVG File Upload

State: Published
Severity: 3.7 Low
Published: Dec 12, 2023
Updated: Aug 28, 2024
Reserved: Nov 24, 2023

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	3.7 Low	CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N	GitHub_M

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Product	Versions
Umbraco-CMSumbraco	>= 7.0.0, < 7.15.11Affected >= 8.0.0, < 8.18.9Affected >= 9.0.0-rc001, < 10.7.0Affected >= 11.0.0-rc1, < 11.5.0Affected >= 12.0.0-rc1, < 12.2.0Affected

References

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