Log in Start free

Vulnerability · Published May 21, 2024 · Assigned by GitHub_M

CVE-2024-35218Umbraco CMS Vulnerable to Stored XSS on Content Page Through Markdown Editor Preview Pane

Medium 4.2

In plain English

A medium-severity cross-site scripting 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 0.4% (higher than 29% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.2Medium
Exploit odds (30 days)0.4%top 70.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Umbraco CMS is an ASP.NET CMS used by more than 730.000 websites. Stored Cross-site scripting (XSS) enable attackers that have access to backoffice to bring malicious content into a website or application. This vulnerability has been patched in version(s) 8.18.13, 10.8.4, 12.3.7, 13.1.1 by implementing IHtmlSanitizer.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
NuGetumbracocms.core8.18.13GHSA-gvpc-3pj6-4m9w
NuGetumbracocms.core10.8.4GHSA-gvpc-3pj6-4m9w
NuGetumbracocms.core12.3.7GHSA-gvpc-3pj6-4m9w
NuGetumbracocms.core13.1.1GHSA-gvpc-3pj6-4m9w

Affected products (as reported)

VendorProductVersions
umbraco Umbraco-CMS >= 8.0.0, < 8.18.13>= 10.0.0, < 10.8.4>= 12.0.0, < 12.3.7>= 13.0.0, < 13.1.1

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N

References