Missing Authorization

Overview Umbraco.Cms.Api.Delivery is a presentation layer for the Umbraco CMS Delivery API. Affected versions of this package are vulnerable to Missing Authorization in IOutputCachePolicy.CacheRequestAsync. An attacker can access sensitive information by sending requests without a valid API key a...

Umbraco Delivery API allows for cached requests to be returned with an invalid API key

Impact Umbraco's content delivery API can be restricted from public access such that an API key must be provided in a header to authorize the request. It's also possible to configure output caching, such that the delivery API outputs will be cached for a period of time, improving performance...

GHSA-75VQ-QVHR-7FFR Umbraco Delivery API allows for cached requests to be returned with an invalid API key

Impact Umbraco's content delivery API can be restricted from public access such that an API key must be provided in a header to authorize the request. It's also possible to configure output caching, such that the delivery API outputs will be cached for a period of time, improving performance...

PT-2025-31370 · Umbraco · Umbraco

Name of the Vulnerable Software and Affected Versions: Umbraco versions 13.0.0 through 13.9.2 Umbraco versions 15.0.0 through 15.4.1 Umbraco versions 16.0.0 through 16.1.0 Description: Umbraco’s content delivery API can be restricted to require an API key in a header for authorization. Output...

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 informatio...

GHSA-PGVC-6H2P-Q4F6 Umbraco CMS 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...

Umbraco CMS 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...

Exposure of Sensitive System Information to an Unauthorized Control Sphere

Overview Affected versions of this package are vulnerable to Exposure of Sensitive System Information to an Unauthorized Control Sphere via an anonymously accessible endpoint that reveals details about configured password requirements. An attacker can gain insight into password policy information...

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 informatio...

CVE-2025-49147

CVE-2025-49147 affects Umbraco CMS up to versions 10.8.10 and 13.9.1. An anonymously accessible endpoint reveals configured password policy details, which could plausibly assist brute‑force attempts. Patched in 10.8.11 and 13.9.2; upgrades to these versions are recommended. Other versions (7/8, 1...

CVE-2025-49147 Umbraco.Cms Vulnerable to Disclosure of Configured Password Requirements

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 informatio...

CVE-2025-49147 Umbraco.Cms Vulnerable to Disclosure of Configured Password Requirements

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 informatio...

CVE-2025-49147 Umbraco.Cms Vulnerable to Disclosure of Configured Password Requirements

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 informatio...

Umbraco 安全漏洞

Umbraco is an open source content management system CMS written in C from Umbraco, Denmark. A security vulnerability exists in Umbraco versions 10.0.0 through 10.8.10 and 13.0.0 through 13.9.1, which stems from configured password requirement information that can be retrieved via an anonymous...

PT-2025-26763 · Umbraco · Umbraco

Name of the Vulnerable Software and Affected Versions: Umbraco versions 10.0.0 through 10.8.10 Umbraco versions 13.0.0 through 13.9.1 Description: The issue allows an attacker to retrieve information about the configured password requirements via a request to an anonymously authenticated endpoint...

CVE-2025-48953

Umbraco is an ASP.NET content management system CMS. Starting in version 14.0.0 and prior to versions 15.4.2 and 16.0.0, it's possible to upload a file that doesn't adhere with the configured allowable file extensions via a manipulated API request. The issue is patched in versions 15.4.2 and...

Improper File Validation

umbraco.cms is vulnerable to improper file validation. The vulnerability is due to insufficient checks on uploaded file extensions, allowing bypass of configured restrictions via manipulated API requests...

Umbraco Vulnerable to By-Pass of Configured Allowed Extensions for File Uploads

Impact Via a manipulated API request it's possible to upload a file that doesn't adhere with the configured allowable file extensions. Patches Patched in 15.4.2 and 16.0.0. Workarounds None available...

GHSA-FR6R-P8HV-X3C4 Umbraco Vulnerable to By-Pass of Configured Allowed Extensions for File Uploads

Impact Via a manipulated API request it's possible to upload a file that doesn't adhere with the configured allowable file extensions. Patches Patched in 15.4.2 and 16.0.0. Workarounds None available...

CVE-2025-48953

Umbraco is an ASP.NET content management system CMS. Starting in version 14.0.0 and prior to versions 15.4.2 and 16.0.0, it's possible to upload a file that doesn't adhere with the configured allowable file extensions via a manipulated API request. The issue is patched in versions 15.4.2 and...