CVE-2023-49279

Severity CVSS v4.0:

Pending analysis

Type:

CWE-79 Cross-Site Scripting (XSS)

Publication date:

12/12/2023

Last modified:

15/12/2023

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.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.40 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope (S): Changed
Confidentiality (C): Low
Integrity (I): Low
Availability (A): None

Base Score 3.x

5.40

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:umbraco:umbraco_cms::::::::	7.0.0 (including)	7.15.11 (excluding)
cpe:2.3:a:umbraco:umbraco_cms::::::::	8.0.0 (including)	8.18.9 (excluding)
cpe:2.3:a:umbraco:umbraco_cms::::::::	10.0.0 (including)	10.7.0 (excluding)
cpe:2.3:a:umbraco:umbraco_cms::::::::	11.0.0 (including)	11.5.0 (excluding)
cpe:2.3:a:umbraco:umbraco_cms::::::::	12.0.0 (including)	12.2.0 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2023-49279

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools