CVEvulnerability

CVE-2023-49279

5.4 MEDIUM Published 2023-12-12 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-12-12
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
3.7 LOW — CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
CVSS 3.1 ([email protected])
5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weaknesses
CWE-79

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.

Affected configurations

• umbraco umbraco cms (>= 7.0.0 < 7.15.11) • umbraco umbraco cms (>= 8.0.0 < 8.18.9) • umbraco umbraco cms (>= 10.0.0 < 10.7.0) • umbraco umbraco cms (>= 11.0.0 < 11.5.0) • umbraco umbraco cms (>= 12.0.0 < 12.2.0)

Related

Weakness · CWE (1)

  • CWE-79 Improper Neutralization of Input During Web Page Generation weakness

References