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Vulnerability · Published Jul 13, 2023 · Assigned by GitHub_M

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

High 7.5

In plain English

A high-severity improper access control in Umbraco-CMS from umbraco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.7%top 46.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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 & fixed versions

EcosystemPackageFixed inAdvisory
NuGetumbraco.cms.infrastructure10.6.1GHSA-h8wc-r4jh-mg7m
NuGetumbraco.cms.infrastructure11.4.2GHSA-h8wc-r4jh-mg7m
NuGetumbraco.cms.infrastructure12.0.1GHSA-h8wc-r4jh-mg7m
NuGetumbraco.cms.web.backoffice10.6.1GHSA-h8wc-r4jh-mg7m
NuGetumbraco.cms.web.backoffice11.4.2GHSA-h8wc-r4jh-mg7m
NuGetumbraco.cms.web.backoffice12.0.1GHSA-h8wc-r4jh-mg7m

Affected products (as reported)

VendorProductVersions
umbraco Umbraco-CMS >= 9.0.0, < 10.6.1>= 11.0.0, < 11.4.2= 12.0.0

Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

References