CVE-2025-49147: Umbraco.Cms Vulnerable to Disclosure of Configured Password Requirements
Impact Via a request to an anonymously authenticated endpoint it's possible to retrieve information about the configured password requirements. The information available is limited but would perhaps give some additional detail useful for someone attempting to brute force derive a user's password.
The vulnerability can be found in the supported Umbraco versions 10 and 13. It was not exposed in Umbraco 7 or 8, nor in 14 or higher versions.
Patches Patched in 10.8.11 and 13.9.2
Other sources
Umbraco, a free and open source .NET content management system, has a vulnerability in versions 10.0.0 through 10.8.10 and 13.0.0 through 13.9.1. Via a request to an anonymously authenticated endpoint it's possible to retrieve information about the configured password requirements. The information available is limited but would perhaps give some additional detail useful for someone attempting to brute force derive a user's password. This information was not exposed in Umbraco 7 or 8, nor in 14 or higher versions. The vulnerability is patched in versions 10.8.11 and 13.9.2.
— MITRE
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2025-49147?
CVE-2025-49147 has a medium severity rating as it allows unauthorized information retrieval about password requirements.
How does CVE-2025-49147 affect Umbraco?
CVE-2025-49147 affects Umbraco versions 10.0.0 to 10.8.10 and 13.0.0 to 13.9.1, enabling information exposure through unauthenticated requests.
How do I fix CVE-2025-49147?
To fix CVE-2025-49147, upgrade Umbraco to version 10.8.11 or 13.9.2 or later.
What type of information can be exposed by CVE-2025-49147?
CVE-2025-49147 can disclose information regarding the configured password requirements of the Umbraco installation.
Is it possible to exploit CVE-2025-49147 without authentication?
Yes, CVE-2025-49147 can be exploited through requests made to anonymously authenticated endpoints.