CVE-2025-67288: Umbraco CMS has an arbitrary file upload vulnerability

December 22, 2025 (updated January 3, 2026)

An arbitrary file upload vulnerability in Umbraco CMS v16.3.3 allows attackers to execute arbitrary code via uploading a crafted PDF file.

References

github.com/advisories/GHSA-54mj-vcvj-q3v5
github.com/umbraco/Umbraco-CMS
github.com/vuquyen03/CVE/tree/main/CVE-2025-67288
nvd.nist.gov/vuln/detail/CVE-2025-67288

Code Behaviors & Features

Detect and mitigate CVE-2025-67288 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 →