Description
Umbraco is an ASP.NET content management system (CMS). Starting in version 8.0.0 and prior to versions 8.18.10, 10.8.1, and 12.3.4, a brute force exploit can be used to collect valid usernames. Versions 8.18.10, 10.8.1, and 12.3.4 contain a patch for this issue.
References (1)
Core 1
Core References
Vendor Advisory x_refsource_confirm
https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-7x74-h8cw-qhxq
Scores
CVSS v3
5.3
EPSS
0.0032
EPSS Percentile
54.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-200
CWE-307
Status
published
Products (2)
nuget/Umbraco.CMS
8.0.0 - 8.18.10NuGet
umbraco/umbraco_cms
8.0.0 - 8.18.10
Published
Dec 12, 2023
Tracked Since
Feb 18, 2026