Open Redirect in Umbraco Umbraco-cms
CVE-2026-46616
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…
Vulnerability class: Open Redirect
EPSS: 0.002 (7.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.
Affected products
- Umbraco Umbraco-cms — versions < 13.14.0, >= 17.3.0-rc, < 17.4.0
- Umbraco Umbraco_cms
Weakness classification (CWE)
References
- security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-46616?
- CVE-2026-46616 is a medium-severity vulnerability in Umbraco Umbraco-cms, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 5.4/10. Published 2026-06-10.
- How severe is CVE-2026-46616?
- Medium severity. CVSS v3 base score is 5.4 out of 10.