Medium (6.5) in umbraco umbraco cms. EPSS 9.5% chance of exploitation in the next 30 days.
An authenticated path traversal vulnerability exists during package installation in Umbraco CMS <= 8.9.1 or current, which could result in arbitrary files being written outside of the site home and expected paths when installing an Umbraco package.
Severity
CVSS 3.1
6.5 medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
EPSS
9.5% chance of exploitation in the next 30 days; higher than 95% of CVEs (scores of 2026-10-31)