CVE-2025-67288 Details
Description
An arbitrary file upload vulnerability in Umbraco CMS v16.3.3 allows attackers to execute arbitrary code by uploading a crafted PDF file. NOTE: this is disputed by the Supplier because the responsibility for file validation (as shown in the documentation) belongs to the system administrator who is implementing Umbraco CMS in their environment, not to Umbraco CMS itself. The Supplier also states that PDF JavaScript runs in a completely isolated sandbox, not the browser's DOM context, which means that privilege boundaries would not be crossed, a related issue to CVE-2023-49279.
A vulnerability allowing arbitrary file upload has been identified in Umbraco CMS version 16.3.3. This issue arises from the application's media upload feature, which does not properly sanitize PDF files before they are uploaded. As a result, attackers can upload PDFs containing embedded JavaScript, which is executed in the context of the user's browser when the PDF is accessed through the Umbraco interface. This vulnerability could lead to stored cross-site scripting, with potential consequences such as session hijacking, unauthorized actions, exposure of sensitive information, and abuse of trusted user interactions within the CMS.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Dec 22, 2025References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/vuquyen03/CVE/tree/main/CVE-2025-67288 | [email protected] | Third Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-434 | Unrestricted Upload of File with Dangerous Type | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| umbraco umbraco cms | 16.3.3 |
CPE
Remediation
| |
Change History
10 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 8, 2026 | CVE Modified | [email protected] |
| Jul 5, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jan 8, 2026 | CVE Modified | [email protected] |
| Jan 8, 2026 | CVE Modified | [email protected] |
| Jan 2, 2026 | Initial Analysis | [email protected] |
| Jan 2, 2026 | CVE Modified | [email protected] |
| Dec 22, 2025 | New CVE Received | [email protected] |
| Dec 22, 2025 | CVE Modified | CISA-ADP |