CVE-2019-1445: Microsoft Office Online Server

Medium severity, CVSS 5.4. EPSS: 0.8% chance of exploitation in the next 30 days.

A spoofing vulnerability exists when Office Online does not validate origin in cross-origin communications handlers correctly, aka 'Microsoft Office Online Spoofing Vulnerability'. This CVE ID is unique from CVE-2019-1447.

Affected products

• Microsoft Office Online Server: affected versions not specified

Published 2019-11-12. Last modified 2026-06-17.