CVE-2020-9471

8.8 highEPSS 2.3%

High (8.8) in umbraco umbraco cms. EPSS 2.3% chance of exploitation in the next 30 days.

Umbraco Cloud 8.5.3 allows an authenticated file upload (and consequently Remote Code Execution) via the Install Packages functionality.

Severity

8.8 high

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 2.3% chance of exploitation in the next 30 days; higher than 83% of CVEs (scores of 2026-10-31)
CWE: CWE-434
Published: 2020-03-16
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19