---
id: CVE-2026-58643
title: >-
  Improper neutralization of input during web page generation ('cross-site
  scripting') in Windows Admin Center allows an unauthorized attacker to perform
  spoofing over a network.
summary: >-
  Improper neutralization of input during web page generation ('cross-site
  scripting') in Windows Admin Center allows an unauthorized attacker to perform
  spoofing over a network.
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
published: '2026-07-16'
updated: '2026-07-18'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-58643'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58643'
    label: secure@microsoft.com
tags:
  - nvd
  - cve.org
epss: 0.00413
epssPercentile: 0.32842
ingestedAt: '2026-07-18T20:24:54.774Z'
vendor: Microsoft
product: Windows Admin Center
affected:
  - windows_admin_center >= 1809.0 < 2.6.7
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-07-18T03:20:12.246696Z'
---

## Overview

Improper neutralization of input during web page generation ('cross-site scripting') in Windows Admin Center allows an unauthorized attacker to perform spoofing over a network.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.