CVE-2025-67288
Unknown Unknown - Not Provided
Arbitrary File Upload in Umbraco CMS 16.3.3 Enables Code Execution

Publication date: 2025-12-22

Last updated on: 2025-12-22

Assigner: MITRE

Description
An arbitrary file upload vulnerability in Umbraco CMS v16.3.3 allows attackers to execute arbitrary code via uploading a crafted PDF file.
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Meta Information
Published
2025-12-22
Last Modified
2025-12-22
Generated
2026-06-16
AI Q&A
2025-12-23
EPSS Evaluated
2026-06-15
NVD
CVE-2025-67288
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
umbraco cms 16.3.3
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-434 The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.
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Executive Summary

This vulnerability is an arbitrary file upload flaw in Umbraco CMS version 16.3.3 that allows attackers to upload a specially crafted PDF file. By doing so, attackers can execute arbitrary code on the affected system.

Impact Analysis

The vulnerability can lead to full system compromise since attackers can execute arbitrary code remotely without any privileges or user interaction. This can result in complete loss of confidentiality, integrity, and availability of the affected system.

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