Advisory Database
  • Advisories
  • Dependency Scanning
  1. nuget
  2. ›
  3. Umbraco.Cms.Web.BackOffice
  4. ›
  5. CVE-2023-37267

CVE-2023-37267: Umbraco allows possible Admin-level access to backoffice without Auth under rare conditions

July 13, 2023

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.

References

  • github.com/advisories/GHSA-h8wc-r4jh-mg7m
  • github.com/umbraco/Umbraco-CMS/commit/1f26f2c6f3428833892cde5c6d8441fb041e410e
  • github.com/umbraco/Umbraco-CMS/commit/20a4e475c8d7b91d263e4e103ef19f3644e7b569
  • github.com/umbraco/Umbraco-CMS/commit/82eae48d098b9deecbdf86cf288b2b18020e1fed
  • github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-h8wc-r4jh-mg7m
  • nvd.nist.gov/vuln/detail/CVE-2023-37267

Code Behaviors & Features

Detect and mitigate CVE-2023-37267 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →

Affected versions

All versions starting from 9.0.0 before 10.6.1, all versions starting from 11.0.0 before 11.4.2, version 12.0.0

Fixed versions

  • 10.6.1
  • 11.4.2
  • 12.0.1

Solution

Upgrade to versions 10.6.1, 11.4.2, 12.0.1 or above.

Impact 9.8 CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Learn more about CVSS

Source file

nuget/Umbraco.Cms.Web.BackOffice/CVE-2023-37267.yml

Spotted a mistake? Edit the file on GitLab.

  • Site Repo
  • About GitLab
  • Terms
  • Privacy Statement
  • Contact

Page generated Sun, 08 Nov 2026 00:16:00 +0000.