CVE-2026-58643: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Microsoft Windows Admin Center
CVE-2026-58643 is a cross-site scripting (XSS) vulnerability in Microsoft Windows Admin Center version 1809.0. It involves improper neutralization of input during web page generation, allowing an unauthorized attacker to perform spoofing over a network. The vulnerability has a CVSS 3.1 base score of 6.1, indicating medium severity. An official fix is available from Microsoft.
AI Analysis
Technical Summary
This vulnerability (CWE-79) in Windows Admin Center 1809.0 results from improper input neutralization during web page generation, enabling cross-site scripting attacks. Exploitation could allow an attacker to spoof content over a network, potentially leading to limited confidentiality and integrity impacts. The vulnerability requires user interaction but no privileges and has low attack complexity. Microsoft has published an official fix to address this issue.
Potential Impact
Successful exploitation can lead to spoofing attacks that compromise confidentiality and integrity of data viewed by users of Windows Admin Center 1809.0. There is no impact on availability. The attack requires no privileges but does require user interaction. No known exploits are currently reported in the wild.
Mitigation Recommendations
An official fix is available from Microsoft. Users should apply the patch provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58643 to remediate this vulnerability.
CVE-2026-58643: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Microsoft Windows Admin Center
Description
CVE-2026-58643 is a cross-site scripting (XSS) vulnerability in Microsoft Windows Admin Center version 1809.0. It involves improper neutralization of input during web page generation, allowing an unauthorized attacker to perform spoofing over a network. The vulnerability has a CVSS 3.1 base score of 6.1, indicating medium severity. An official fix is available from Microsoft.
CVSS v3.1
Score 6.1medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-79) in Windows Admin Center 1809.0 results from improper input neutralization during web page generation, enabling cross-site scripting attacks. Exploitation could allow an attacker to spoof content over a network, potentially leading to limited confidentiality and integrity impacts. The vulnerability requires user interaction but no privileges and has low attack complexity. Microsoft has published an official fix to address this issue.
Potential Impact
Successful exploitation can lead to spoofing attacks that compromise confidentiality and integrity of data viewed by users of Windows Admin Center 1809.0. There is no impact on availability. The attack requires no privileges but does require user interaction. No known exploits are currently reported in the wild.
Mitigation Recommendations
An official fix is available from Microsoft. Users should apply the patch provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58643 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-01T21:14:44.618Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58643","vendor":"Microsoft"}]
Threat ID: 6a59dfe768715ace439a90e8
Added to database: 07/17/2026, 07:55:19 UTC
Last enriched: 07/17/2026, 08:02:45 UTC
Last updated: 07/17/2026, 08:22:10 UTC
Views: 4
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