CVE-2025-22389: Optimizely CMS

High severity, CVSS 8.0. EPSS: 0.5% chance of exploitation in the next 30 days.

An issue was discovered in Optimizely EPiServer.CMS.Core before 12.32.0. A medium-severity vulnerability exists in the CMS, where the application does not properly validate uploaded files. This allows the upload of potentially malicious file types, including .docm .html. When accessed by application users, these files can be used to execute malicious actions or compromise users' systems.

Affected products

• Optimizely Optimizely CMS: before 12.32.0 (fixed in 12.32.0)

Published 2025-01-04. Last modified 2026-06-17.