---
id: CVE-2025-64672
title: >-
  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.
summary: >-
  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.
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-79
vendor: microsoft
product: sharepoint_server
affected:
  - sharepoint_server < 16.0.19127.20378
patched:
  - sharepoint_server 16.0.19127.20378
published: '2025-12-09'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T21:10:00.183'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-64672'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-64672'
    label: secure@microsoft.com
tags:
  - nvd
epss: 0.01021
epssPercentile: 0.62665
ingestedAt: '2026-10-14T21:57:04.764Z'
---

## Overview

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

- `sharepoint_server < 16.0.19127.20378`

## Remediation

Upgrade past the affected range:

- `sharepoint_server 16.0.19127.20378`