CVE-2023-48227: Umbraco CMS Backoffice User can bypass "Publish" restriction

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-12-12 · updated 2026-06-17
Weakness: CWE-863

Description

Umbraco is an ASP.NET content management system (CMS). Starting in version 8.0.0 and prior to versions 8.18.10, 10.7.0, and 12.3.0, Backoffice users with send for approval permission but not publish permission are able to publish in some scenarios. Versions 8.18.10, 10.7.0, and 12.3.0 contains a patch for this issue. No known workarounds are available.

Affected products

Umbraco-CMS: from 8.0.0 before 8.18.10; from 9.0.0 before 10.7.0; from 11.0.0 before 12.3.0 — fixed in 10.7.0, 12.3.0, 8.18.10

How to fix

Upgrade to a fixed version: Umbraco-CMS 10.7.0, 12.3.0, 8.18.10. Check the vendor advisory for mitigations.

References

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