CVE-2025-64672: Microsoft SharePoint Server

Critical severity, CVSS 9.0. EPSS: 1% chance of exploitation in the next 30 days.

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

• Microsoft SharePoint Server: before 16.0.19127.20378 (fixed in 16.0.19127.20378)

Published 2025-12-09. Last modified 2026-06-17.