// For flags

CVE-2023-49279

Umbraco CMS vulnerable to stored XSS via SVG File Upload

Severity Score

5.4
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

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.

Umbraco es un sistema de gestión de contenidos (CMS) ASP.NET. A partir de la versión 7.0.0 y anteriores a las versiones 7.15.11, 8.18.9, 10.7.0, 11.5.0 y 12.2.0, un usuario con acceso al backoffice puede cargar archivos SVG que incluyan scripts. Si el usuario puede engañar a otro usuario para que cargue los medios directamente en un navegador, los scripts se pueden ejecutar. Las versiones 7.15.11, 8.18.9, 10.7.0, 11.5.0 y 12.2.0 contienen un parche para este problema. Algunas soluciones están disponibles. Implemente la validación de archivos del lado del servidor o proporcione todos los medios desde un host diferente (por ejemplo, cdn) al que está alojado Umbraco.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2023-11-24 CVE Reserved
  • 2023-12-12 CVE Published
  • 2024-08-28 CVE Updated
  • 2024-11-11 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Umbraco
Search vendor "Umbraco"
 Umbraco Cms
Search vendor "Umbraco" for product "Umbraco Cms"
 >= 7.0.0 < 7.15.11
Search vendor "Umbraco" for product "Umbraco Cms" and version " >= 7.0.0 < 7.15.11"
-
Affected
Umbraco
Search vendor "Umbraco"
 Umbraco Cms
Search vendor "Umbraco" for product "Umbraco Cms"
 >= 8.0.0 < 8.18.9
Search vendor "Umbraco" for product "Umbraco Cms" and version " >= 8.0.0 < 8.18.9"
-
Affected
Umbraco
Search vendor "Umbraco"
 Umbraco Cms
Search vendor "Umbraco" for product "Umbraco Cms"
 >= 10.0.0 < 10.7.0
Search vendor "Umbraco" for product "Umbraco Cms" and version " >= 10.0.0 < 10.7.0"
-
Affected
Umbraco
Search vendor "Umbraco"
 Umbraco Cms
Search vendor "Umbraco" for product "Umbraco Cms"
 >= 11.0.0 < 11.5.0
Search vendor "Umbraco" for product "Umbraco Cms" and version " >= 11.0.0 < 11.5.0"
-
Affected
Umbraco
Search vendor "Umbraco"
 Umbraco Cms
Search vendor "Umbraco" for product "Umbraco Cms"
 >= 12.0.0 < 12.2.0
Search vendor "Umbraco" for product "Umbraco Cms" and version " >= 12.0.0 < 12.2.0"
-
Affected