CVE-2026-69615: Microsoft Office SharePoint Spoofing Vulnerability

Overview

Severity
Low (CVSS 3.5)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C
Category
Spoofing
Exploit Status
Not Exploited
Exploitation Likelihood
Unlikely
Patch Tuesday
2026-Sep
Released
2026-09-08

Description

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

FAQ

**According to the CVSS metric, user interaction is required (UI:R) and privileges required is high (PR:H). What does that mean for this vulnerability? An authorized attacker with administrator privileges must send a victim a malicious site and convince them to open it. I am running SharePoint Server 2016. Do the updates for SharePoint Enterprise Server 2016 also apply to the version I am running? Yes. The same KB number applies to both SharePoint Server 2016 and SharePoint Enterprise Server 2016. Customers running either version should install the security update to be protected from this vulnerability.

Affected Products (1)

Microsoft Office

  • Microsoft SharePoint Server Subscription Edition

Security Updates (1)

Acknowledgments

P1hcn

Revision History

  • 2026-09-08: Information published.