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  5. CVE-2024-35218

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

May 21, 2024 (updated February 12, 2025)

Stored Cross-site scripting (XSS) enable attackers that have access to backoffice to bring malicious content into a website or application.

References

  • github.com/advisories/GHSA-gvpc-3pj6-4m9w
  • github.com/umbraco/Umbraco-CMS
  • github.com/umbraco/Umbraco-CMS/commit/1b712fe6ec52aa4e71b3acf63e393c8e6ab85385
  • github.com/umbraco/Umbraco-CMS/commit/a2684069b1e9976444f60b4b37a80be05b87f6b6
  • github.com/umbraco/Umbraco-CMS/commit/cbf9f9bcd199d7ca0412be3071d275556f10b7ba
  • github.com/umbraco/Umbraco-CMS/commit/d090176272d07500dac0daee7c598aa8bb321050
  • github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-gvpc-3pj6-4m9w
  • nvd.nist.gov/vuln/detail/CVE-2024-35218

Code Behaviors & Features

Detect and mitigate CVE-2024-35218 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →

Affected versions

All versions starting from 8.0.0 before 8.18.13, all versions starting from 10.0.0 before 10.8.4, all versions starting from 12.0.0 before 12.3.7, all versions starting from 13.0.0 before 13.1.1

Fixed versions

  • 8.18.13
  • 10.8.4
  • 12.3.7
  • 13.1.1

Solution

Upgrade to versions 10.8.4, 12.3.7, 13.1.1, 8.18.13 or above.

Impact 4.2 MEDIUM

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

Learn more about CVSS

Weakness

  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Source file

nuget/UmbracoCms.Core/CVE-2024-35218.yml

Spotted a mistake? Edit the file on GitLab.

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