CVE-2025-46736
May 06, 2025
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.
Affected Packages
https://github.com/umbraco/Umbraco-CMS.git (GITHUB):
Affected version(s) >=release-6.0.3 <release-10.8.0Fix Suggestion:
Update to version release-10.8.0https://github.com/umbraco/Umbraco-CMS.git (GITHUB):
Affected version(s) >=release-11.0.0 <release-13.8.1Fix Suggestion:
Update to version release-13.8.1Umbraco.Cms (NUGET):
Affected version(s) >=9.0.0 <10.8.10Fix Suggestion:
Update to version 10.8.10Umbraco.Cms.Core (NUGET):
Affected version(s) >=9.0.0-rc001 <10.8.10Fix Suggestion:
Update to version 10.8.10Umbraco.Cms.Core (NUGET):
Affected version(s) >=11.0.0 <13.8.1Fix Suggestion:
Update to version 13.8.1Umbraco.Cms (NUGET):
Affected version(s) >=11.0.0-rc1 <13.8.1Fix Suggestion:
Update to version 13.8.1Umbraco.Cms.Web.BackOffice (NUGET):
Affected version(s) >=9.0.0-rc001 <13.8.1Fix Suggestion:
Update to version 13.8.1Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Observable Response Discrepancy
EPSS
Base Score:
0.31
