CVE-2025-49147

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.

• CWE-497

• https://github.com/umbraco/Umbraco-CMS/commit/b4144564c836ec6929111ce2a12eb1f67b42d61ePatch
• https://github.com/umbraco/Umbraco-CMS/commit/d8f68d2c40f8e158bd81d469f25ef3a4e1d86c4cPatch
• https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-pgvc-6h2p-q4f6Patch, Third Party Advisory

Published

Jun 24, 2025

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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