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Vulnerabilities / CVE-2023-37267

critical

CVE-2023-37267

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

Published Modified CWE 284
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GHSA7.5CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by GHSA (high).

Description

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.

Affected packages and fixed versions

SourcePackageFixed in
nuget::GitHub Security Advisory NuGetUmbraco.Cms.Infrastructure, Umbraco.Cms.Web.BackOffice, umbraco.cms.infrastructure and 1 more10.6.1, 11.4.2, 12.0.1
Show all 4 entries from 1 source
SourcePackageFixed in
nuget::GitHub Security Advisory NuGetUmbraco.Cms.Infrastructure10.6.1, 11.4.2, 12.0.1
nuget::GitHub Security Advisory NuGetUmbraco.Cms.Web.BackOffice10.6.1, 11.4.2, 12.0.1
nuget::GitHub Security Advisory NuGetumbraco.cms.infrastructure10.6.1, 11.4.2, 12.0.1
nuget::GitHub Security Advisory NuGetumbraco.cms.web.backoffice10.6.1, 11.4.2, 12.0.1

References

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.