Description
Umbraco is a free and open source .NET content management system. Prior to versions 10.8.10 and 13.8.1, based on an analysis of the timing of post login API responses, it's possible to determine whether an account exists. The issue is patched in versions 10.8.10 and 13.8.1. No known workarounds are available.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected products
- umbraco / Umbraco-CMS>= 11.0.0-rc1, < 13.8.1 – >= 11.0.0-rc1, < 13.8.1
- umbraco / Umbraco-CMS< 10.8.10 – < 10.8.10