CVE-2026-46616
Umbraco.Cms: Open Redirect Vulnerability in Surface Controllers
Description
Umbraco is an ASP.NET CMS. Prior to versions 13.14.0 and 17.4.0, some of the Surface Controllers in the CMS provide to support member related operations fail to validate redirect URLs, making Razor templates that derive 'RedirectUrl' from user-controlled query parameters vulnerable to malicious redirect attacks. This issue has been patched in versions 13.14.0 and 17.4.0.
INFO
Published Date :
June 10, 2026, 5:16 p.m.
Last Modified :
June 12, 2026, 7:34 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update Umbraco to version 13.14.0 or later.
- Update Umbraco to version 17.4.0 or later.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-46616.
| URL | Resource |
|---|---|
| https://github.com/umbraco/Umbraco-CMS/pull/22561 | Issue Tracking Patch |
| https://github.com/umbraco/Umbraco-CMS/pull/22565 | Issue Tracking Patch |
| https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-2qjj-h6wp-c7h7 | Mitigation Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-46616 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-46616
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-46616 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-46616 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jun. 12, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Added CPE Configuration OR *cpe:2.3:a:umbraco:umbraco_cms:*:*:*:*:*:*:*:* versions up to (excluding) 13.14.0 *cpe:2.3:a:umbraco:umbraco_cms:*:*:*:*:*:*:*:* versions from (including) 14.0.0 up to (excluding) 17.4.0 Added Reference Type GitHub, Inc.: https://github.com/umbraco/Umbraco-CMS/pull/22561 Types: Issue Tracking, Patch Added Reference Type GitHub, Inc.: https://github.com/umbraco/Umbraco-CMS/pull/22565 Types: Issue Tracking, Patch Added Reference Type GitHub, Inc.: https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-2qjj-h6wp-c7h7 Types: Mitigation, Vendor Advisory -
New CVE Received by [email protected]
Jun. 10, 2026
Action Type Old Value New Value Added Description Umbraco is an ASP.NET CMS. Prior to versions 13.14.0 and 17.4.0, some of the Surface Controllers in the CMS provide to support member related operations fail to validate redirect URLs, making Razor templates that derive 'RedirectUrl' from user-controlled query parameters vulnerable to malicious redirect attacks. This issue has been patched in versions 13.14.0 and 17.4.0. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N Added CWE CWE-601 Added Reference https://github.com/umbraco/Umbraco-CMS/pull/22561 Added Reference https://github.com/umbraco/Umbraco-CMS/pull/22565 Added Reference https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-2qjj-h6wp-c7h7