CVE-2023-37267highCWE-284

CVE-2023-37267: high-severity vulnerability in Umbraco-CMS

Umbraco allows possible Admin-level access to backoffice without Auth under rare conditions

Published · Updated

Follow this CVE+ Monitor Umbraco-CMS+ Monitor Umbraco.Cms.Web.BackOffice

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.5epss 0.7%
Umbraco is a ASP.NET CMS. Under rare conditions a restart of Umbraco can allow unauthorized users access to admin-level permissions. This vulnerability was patched in versions 10.6.1, 11.4.2 and 12.0.1.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
umbraco · Umbraco-CMS
Related CVEs — Umbraco-CMS

In the same product, most dangerous first.

CVE-2025-24011MEDIUMUmbraco CMS Vulnerable to User Enumeration Feasible Based On Management API Timing and Response CodesEPSS 1.6%CVE-2026-69197HIGHUmbraco: Delivery API leaks protected (Public Access) content through Content Picker / Multi-Node Tree Picker expansionEPSS 0.7%CVE-2025-32017HIGHUmbraco has a Management API Vulnerability to Path Traversal With Authenticated UsersEPSS 0.6%CVE-2023-49089HIGHUmbraco CMS possible path traversal when creating packages from backofficeEPSS 0.6%CVE-2023-49278MEDIUMUmbraco CMS brute force exploit can be used to collect valid usernamesEPSS 0.5%CVE-2026-117553HIGHUmbraco CMS before 17.7.2 and 18.2.2 Account Takeover via Host Header PoisoningEPSS 0.5%