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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
umbraco Umbraco-CMS
>= 8.0.0, < 8.18.10affected>= 9.0.0-rc001, < 10.8.1affected>= 11.0.0-rc1, < 12.3.4affected