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GHSA-54MJ-VCVJ-Q3V5 Umbraco CMS has an arbitrary file upload vulnerability

🗓️ 22 Dec 2025 21:30:33Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 5 Views

Umbraco CMS 16.3.3 has arbitrary file upload vulnerability enabling code execution via a crafted PDF.

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03 Feb 2026 03:10Current
6Medium risk
Vulners AI Score6
CVSS 46.5
CVSS 3.110
EPSS0.00502
5