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.

References

• https://nvd.nist.gov/vuln/detail/CVE-2025-22389
• https://support.optimizely.com/hc/en-us/articles/33182404079629-Content-Management-System-CMS-Security-Advisory-CMS-2025-03