CVE-2025-24011

Summary: CVE-2025-24011 affects Umbraco CMS (.NET). From 14.0.0 up to, but not including, 14.3.2 and 15.1.2, an attacker can determine whether an account exists by analyzing response codes and timing of the management API. Impact: information exposure; no availability/integrity impact claimed. Ve...

CVE-2025-24011 Umbraco CMS Vulnerable to User Enumeration Feasible Based On Management API Timing and Response Codes

Umbraco is a free and open source .NET content management system. Starting in version 14.0.0 and prior to versions 14.3.2 and 15.1.2, it's possible to determine whether an account exists based on an analysis of response codes and timing of Umbraco management API responses. Versions 14.3.2 and...

Umbraco 信息泄露漏洞

Umbraco is an open source content management system CMS written in C from Umbraco, Denmark. An information disclosure vulnerability exists in Umbraco version 14.0.0 and earlier, which stems from the ability to determine the existence of an account based on an analysis of the response code and the...

PT-2025-5259 · Umbraco · Umbraco

Name of the Vulnerable Software and Affected Versions: Umbraco versions 14.0.0 through 14.3.1 Umbraco versions 15.0.0 through 15.1.1 Description: The issue allows authenticated users to exploit a cross-site scripting vulnerability when viewing certain localized backoffice components...

Umbraco 跨站脚本漏洞

Umbraco is an open source Content Management System CMS written in C by the Danish company Umbraco. A cross-site scripting vulnerability exists in Umbraco version 14.0.0 and earlier, which originates from an authenticated user viewing certain localized back-end components and can easily lead to a...

Umbraco Forms's Short and Long Answer Fields Are Not Validated Server-Side For Maximum Length

Impact Character limits configured by editors for short and long answer fields are validated only client-side, not server-side. Patches Patched in 8.13.16, 10.5.7, 13.2.2, 14.1.2...

GHSA-9V8M-QV22-F268 Umbraco Forms's Short and Long Answer Fields Are Not Validated Server-Side For Maximum Length

Impact Character limits configured by editors for short and long answer fields are validated only client-side, not server-side. Patches Patched in 8.13.16, 10.5.7, 13.2.2, 14.1.2...

Improper Input Validation

Overview Umbraco.Forms is an a form creator that's as easy to use. Affected versions of this package are vulnerable to Improper Input Validation due to the lack of server-side validation for character limits in short and long answer fields. An attacker can bypass client-side validations and submi...

CVE-2025-23041 Short and Long Answer Fields Are Not Validated Server-Side For Maximum Length in Umbraco.Forms

Umbraco.Forms is a web form framework written for the nuget ecosystem. Character limits configured by editors for short and long answer fields are validated only client-side, not server-side. This issue has been patched in versions 8.13.16, 10.5.7, 13.2.2, and 14.1.2. Users are advised to upgrade...

CVE-2025-23041 Short and Long Answer Fields Are Not Validated Server-Side For Maximum Length in Umbraco.Forms

Umbraco.Forms is a web form framework written for the nuget ecosystem. Character limits configured by editors for short and long answer fields are validated only client-side, not server-side. This issue has been patched in versions 8.13.16, 10.5.7, 13.2.2, and 14.1.2. Users are advised to upgrade...

CVE-2025-23041

Summary of CVE-2025-23041 : Umbraco.Forms (NuGet) suffers from server-side input validation risk due to character limit checks being enforced only on the client. The root cause is lack of server-side validation for maximum field length in short and long answer fields. Affected versions have patch...

PT-2025-4787 · Umbraco · Umbraco Forms

Name of the Vulnerable Software and Affected Versions: Umbraco.Forms versions prior to 8.13.16 Umbraco.Forms versions prior to 10.5.7 Umbraco.Forms versions prior to 13.2.2 Umbraco.Forms versions prior to 14.1.2 Description: The character limits configured by editors for short and long answer...

Umbraco Forms 输入验证错误漏洞

Umbraco Forms is a form builder. An input validation error vulnerability exists in Umbraco Forms that stems from a short and long answer field character restriction for client-side validation only, which could lead to a data injection attack...

GHSA-MGR7-5782-6JH9 The Umbraco Heartcore headless client library uses a vulnerable Refit dependency package

Impact The Heartcore headless client library depends on Refit to assist in making HTTP requests to Heartcore public APIs. Refit recently published an advisory regarding a CRLF injection vulnerability whereby it is possible for a malicious user to smuggle additional headers or potentially body...

The Umbraco Heartcore headless client library uses a vulnerable Refit dependency package

Impact The Heartcore headless client library depends on Refit to assist in making HTTP requests to Heartcore public APIs. Refit recently published an advisory regarding a CRLF injection vulnerability whereby it is possible for a malicious user to smuggle additional headers or potentially body...

PT-2025-3119

Name of the Vulnerable Software and Affected Versions Umbraco CMS version 14.3.1 Description A stored cross-site scripting XSS vulnerability in Umbraco CMS allows attackers to execute arbitrary web scripts or HTML via a crafted payload. This issue is only possible via authenticated users who have...

The vulnerability in the component `/src/UIOMatic/wwwroot/backoffice/resources/uioMaticObject.r` of the software for automatically generating integrated user interfaces in Umbraco UI-O-Matic allows a hacker to execute arbitrary SQL code.

The vulnerability of the /src/UIOMatic/wwwroot/backoffice/resources/uioMaticObject.r component of the software for automatically generating integrated user interfaces in Umbraco UI-O-Matic is related to the lack of security measures for handling SQL queries. Exploiting this vulnerability allows a...

Cross-Site Scripting (XSS)

umbraco.cms.core is vulnerable to Cross-Site Scripting XSS. The vulnerability is due to improper handling of the argument culture in the file /Umbraco/preview/frame?id of the Dashboard component, which allows remote attackers to manipulate the argument and execute malicious scripts...

Improper Session Termination

umbraco.cms is vulnerable to Improper Session Termination. The vulnerability is due to the server session not being fully terminated during an explicit sign-out, which could allow unauthorized access...

Improper Access Control

Umbraco is vulnerable to Improper Access Control. The vulnerability is due to insufficient restrictions on API access and is caused by improper access control in the webhook API, allows low-privilege users to retrieve information that should be accessible only to users with settings section...