Description
Umbraco CMS is an ASP.NET CMS used by more than 730.000 websites. Stored Cross-site scripting (XSS) enable attackers that have access to backoffice to bring malicious content into a website or application. This vulnerability has been patched in version(s) 8.18.13, 10.8.4, 12.3.7, 13.1.1 by implementing IHtmlSanitizer.
References (5)
Core 5
Core References
Vendor Advisory x_refsource_confirm
https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-gvpc-3pj6-4m9w
Patch x_refsource_misc
https://github.com/umbraco/Umbraco-CMS/commit/1b712fe6ec52aa4e71b3acf63e393c8e6ab85385
Patch x_refsource_misc
https://github.com/umbraco/Umbraco-CMS/commit/a2684069b1e9976444f60b4b37a80be05b87f6b6
Patch x_refsource_misc
https://github.com/umbraco/Umbraco-CMS/commit/cbf9f9bcd199d7ca0412be3071d275556f10b7ba
Scores
CVSS v3
4.2
EPSS
0.0070
EPSS Percentile
72.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (2)
nuget/UmbracoCms.Core
8.0.0 - 8.18.13NuGet
umbraco/umbraco_cms
8.0.0 - 8.18.13
Published
May 21, 2024
Tracked Since
Feb 18, 2026