VULNERABILITY INTELLIGENCE

CVE-2025-67288

CVSS score10 CRITICAL
EPSS probability0.55%
CISA KEVNot currently listed
Published2025-12-22
Last modified2026-07-08
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

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.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-434

Primary references