Improper Following of a Certificate's Chain of Trust Affecting umbraco.engage.forms package, versions [,16.2.1)[17.0.0-rc1,17.1.1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DOTNET-UMBRACOENGAGEFORMS-15369701
- published3 Mar 2026
- disclosed27 Feb 2026
- creditUnknown
Introduced: 27 Feb 2026
NewCVE-2026-27449 (opens in a new tab)How to fix?
Upgrade Umbraco.Engage.Forms to version 16.2.1, 17.1.1 or higher.
Overview
Affected versions of this package are vulnerable to Improper Following of a Certificate's Chain of Trust in the exposed API endpoints that do not enforce authentication or authorization checks. An attacker can access and retrieve sensitive data associated with arbitrary records by directly querying these endpoints with user-controlled identifier parameters, such as id, over the network without valid credentials. This enables large-scale enumeration and extraction of confidential information.