CVE-2024-47819

Umbraco, a free and open source .NET content management system, has a cross-site scripting vulnerability starting in version 14.0.0 and prior to versions 14.3.1 and 15.0.0. This can be leveraged to gain access to higher-privilege endpoints, e.g. if you get a user with admin privileges to run the...

CVE-2024-43377

Umbraco CMS is an ASP.NET CMS. An authenticated user can access a few unintended endpoints. This issue is fixed in 14.1.2...

CVE-2024-34071

Umbraco is an ASP.NET CMS used by more than 730.000 websites. Umbraco has an endpoint that is vulnerable to open redirects. The endpoint is protected so it requires the user to be signed into backoffice before the vulnerable is exposed. This vulnerability has been patched in versions 8.18.14,...

CVE-2024-29035

Umbraco is an ASP.NET CMS. Failing webhooks logs are available when solution is not in debug mode. Those logs can contain information that is critical. This vulnerability is fixed in 13.1.1...

CVE-2024-35218

Umbraco CMS is an ASP.NET CMS used by more than 730.000 websites. Stored Cross-site scripting XSS enable attackers that have access to backoffice to bring malicious content into a website or application. This vulnerability has been patched in versions 8.18.13, 10.8.4, 12.3.7, 13.1.1 by implementi...

CVE-2024-10761

A vulnerability was found in Umbraco CMS up to 10.7.7/12.3.6/13.5.2/14.3.1/15.1.1. It has been classified as problematic. Affected is an unknown function of the file /Umbraco/preview/frame?id of the component Dashboard. The manipulation of the argument culture leads to cross site scripting. It is...

CVE-2024-48929

Umbraco is a free and open source .NET content management system. In versions on the 13.x branch prior to 13.5.2 and versions on the 10.x branch prior to 10.8.7, during an explicit sign-out, the server session is not fully terminated. Versions 13.5.2 and 10.8.7 contain a patch for the issue...

CVE-2023-49273

Umbraco is an ASP.NET content management system CMS. Starting in version 8.0.0 and prior to versions 8.18.10, 10.8.1, and 12.3.4, users with low privileges Editor, etc. are able to access some unintended endpoints. Versions 8.18.10, 10.8.1, and 12.3.4 contain a patch for this issue...

CVE-2023-38694

Umbraco is an ASP.NET content management system CMS. Starting in version 8.0.0 and prior to versions 8.18.10, 10.7.0, and 12.1.0, a user with access to a specific part of the backoffice is able to inject HTML code into a form where it is not intended. Versions 8.18.10, 10.7.0, and 12.1.0 contain ...

CVE-2021-34254

Umbraco CMS before 7.15.7 is vulnerable to Open Redirection due to insufficient url sanitization on booting.aspx...

CVE-2020-5809

A stored XSS vulnerability exists in Umbraco CMS = 8.9.1 or current. An authenticated user can inject arbitrary JavaScript code into iframes when editing content using the TinyMCE rich-text editor, as TinyMCE is configured to allow iframes by default in Umbraco CMS...

CVE-2020-5810

A stored XSS vulnerability exists in Umbraco CMS = 8.9.1 or current. An authenticated user authorized to upload media can upload a malicious .svg file which act as a stored XSS payload...

CVE-2020-5811

An authenticated path traversal vulnerability exists during package installation in Umbraco CMS = 8.9.1 or current, which could result in arbitrary files being written outside of the site home and expected paths when installing an Umbraco package...

CVE-2019-25137

Umbraco CMS 4.11.8 through 7.15.10, and 7.12.4, allows Remote Code Execution by authenticated administrators via msxsl:script in an xsltSelection to developer/Xslt/xsltVisualize.aspx...

CVE-2013-0741

Cross-site scripting XSS vulnerability in imagegen.ashx in Percipient Studios ImageGen before 2.9.0 for Umbraco CMS allows remote attackers to inject arbitrary web script or HTML via the font parameter...

Account Enumeration

umbraco.cms is vulnerable to an Account enumeration. The vulnerability is due to differences in post-login API response times, which allow attackers to determine whether an account exists...

Observable Response Discrepancy

Overview Affected versions of this package are vulnerable to Observable Response Discrepancy due to the timing analysis of post-login API responses. An attacker can determine if a specific user account exists by observing the response times. Remediation Upgrade Umbraco.Cms.Core to version 10.8.10...

Path Traversal

umbraco.cms is vulnerable to Path Traversal. The vulnerability is due to improper validation of file paths in the management API, allowing authenticated users to upload files to unintended locations...

Relative Path Traversal

Overview Affected versions of this package are vulnerable to Relative Path Traversal due to the handling of TemporaryFileOperationStatus in TemporaryFileControllerBase.cs and TemporaryFileService.cs. An attacker can upload files to unintended locations to cause disruption of service to other user...

CVE-2025-32017 Umbraco has a Management API Vulnerability to Path Traversal With Authenticated Users

Umbraco is a free and open source .NET content management system. Authenticated users to the Umbraco backoffice are able to craft management API request that exploit a path traversal vulnerability to upload files into a incorrect location. The issue affects Umbraco 14+ and is patched in 14.3.4 an...