Critical severity9.0NVD Advisory· Published Nov 10, 2026· Updated Nov 10, 2026
CVE-2026-109454
CVE-2026-109454
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.
Affected products
1Patches
Vulnerability mechanics
References
1News mentions
1- Microsoft November 2026 Patch Tuesday Fixes 1,093 Vulnerabilities, Including Outlook Zero-DayCyber Security News · Nov 10, 2026