GHSA-86vq-ccwf-rm62

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Source
https://github.com/advisories/GHSA-86vq-ccwf-rm62
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-86vq-ccwf-rm62/GHSA-86vq-ccwf-rm62.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-86vq-ccwf-rm62
Aliases
  • CVE-2026-27449
Published
2026-02-27T18:35:57Z
Modified
2026-02-28T06:25:06.318577Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
Umbraco.Engage.Forms Allows Unauthorized Access to Multiple API Endpoints
Details

Description

A vulnerability has been identified in Umbraco Engage where certain API endpoints are exposed without enforcing authentication or authorization checks. The affected endpoints can be accessed directly over the network without requiring a valid session or user credentials. By supplying a user-controlled identifier parameter (e.g., ?id=), an attacker can retrieve sensitive data associated with arbitrary records.

Because no access control validation is performed, the endpoints are vulnerable to enumeration attacks, allowing attackers to iterate over identifiers and extract data at scale.

Impact

An unauthenticated attacker can retrieve sensitive Engage-related data by directly querying the affected API endpoints. The vulnerability allows arbitrary record access through predictable or enumerable identifiers.

The confidentiality impact is considered high. No direct integrity or availability impact has been identified.

The scope of exposed data depends on the deployment but may include analytics data, tracking data, customer-related information, or other Engage-managed content.

Patches

The vulnerability affects both v16 and v17. Patches have already been released. Users are advised to update to 16.2.1 or 17.1.1

Database specific
{
    "nvd_published_at": "2026-02-26T22:20:47Z",
    "severity": "HIGH",
    "github_reviewed_at": "2026-02-27T18:35:57Z",
    "cwe_ids": [
        "CWE-284",
        "CWE-306",
        "CWE-639"
    ],
    "github_reviewed": true
}
References

Affected packages

NuGet / Umbraco.Engage.Forms

Package

Name
Umbraco.Engage.Forms
View open source insights on deps.dev
Purl
pkg:nuget/Umbraco.Engage.Forms

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
16.2.1

Affected versions

16.*
16.0.0
16.1.0
16.2.0

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-86vq-ccwf-rm62/GHSA-86vq-ccwf-rm62.json"

NuGet / Umbraco.Engage.Forms

Package

Name
Umbraco.Engage.Forms
View open source insights on deps.dev
Purl
pkg:nuget/Umbraco.Engage.Forms

Affected ranges

Type
ECOSYSTEM
Events
Introduced
17.0.0
Fixed
17.1.1

Affected versions

17.*
17.0.0
17.1.0

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-86vq-ccwf-rm62/GHSA-86vq-ccwf-rm62.json"