PT-2026-48030 · Microsoft · Sharepoint Server 2019+1

Published 2026-06-09 · Updated 2026-06-09 · CVE-2026-47634

Mitre

CVSS v3.1

7.3

High

Base vector

AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

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.

Fix

Special Elements Injection

Weakness Enumeration

CWE-74

Related Identifiers

CVE-2026-47634

Affected Products

Sharepoint Server 2019

Sharepoint Server Subscription Edition

References · 2

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47634 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-47634 · Security Note