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TI-2019-01150 Aliases CVE-2019-1447GHSA-rg9h-2pqq-v7q2

Origin validation error in Microsoft Office Online Server

Priority LOW 26CWE-346Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-346.

Summary

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-2019-1445.

Why it matters now

EPSS 0.00805 57th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftOffice Online Serverall versions—No fix listedCNA
  • Office Online Server VendorMicrosoft Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:office_online_server:-:*:*:*:*:*:*:*not specified by NVDVulnerableMicrosoft
  • cpe:2.3:a:microsoft:office_online_server:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-1447
  2. 2026-10-03 Alias added: GHSA-rg9h-2pqq-v7q2

References

Patch 1

  • TI-2017-08774 Memory corruption in Microsoft Office KEVCVSS 3.1HIGH 7.8
  • TI-2023-08100 Microsoft Word Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2021-13528 Microsoft Excel Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
  • TI-2023-15335 Microsoft Excel Remote Code Execution Vulnerability CVSS 3.1HIGH 7.8
  • TI-2023-16312 Microsoft Excel Remote Code Execution Vulnerability CVSS 3.1HIGH 7.8
  • TI-2018-00733 Out-of-bounds write in Microsoft Word CVSS 3.0HIGH 8.8
See all 280 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences