CVE-2026-109454 PUBLISHED

Microsoft Office SharePoint Spoofing Vulnerability

Assigner: microsoft
Reserved: 12.10.2026 Published: 10.11.2026 Updated: 12.11.2026

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.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
CVSS Score: 9

Product Status

Vendor Microsoft
Product Microsoft SharePoint Server Subscription Edition
Versions
  • affected from 16.0.0 to 16.0.20326.20278 (excl.)

References

Problem Types