Windows Admin Center Spoofing Vulnerability
Published July 16, 2026Updated August 12, 2026
Source data
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.
Impact & technical details
Spoofing
How could an attacker exploit the vulnerability? An attacker would have to convince a user to visit a malicious website, typically via an enticement in email or instant message, or by getting them to open an email attachment. What is the attack vector for this vulnerability? The attack vector is address bar spoofing. A malicious website could spoof the contents of a URL bar via a specially crafted HTML page's long URL and then use it for a phishing attack.
According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do? This vulnerability requires that a user with an affected version of Windows access a malicious server. An attacker would have to host a specially crafted server share or website. An attacker would have no way to force users to visit this specially crafted server share or website, but would have to convince them to visit the server share or website, typically by way of an enticement in an email or chat message.
- CVSS base score
- Not supplied
Affected products
- Windows Admin Center
Source guidance
Remediation
- Release Notes
Patch availability is not confirmed by this dataset. Consult the vendor before selecting a remediation.
GTP recommendation · Rule-based guidance
Recommended next step
Review affected Microsoft products and apply the applicable security updates through your organization's normal patch-management process. Confirm availability and prerequisites in the Microsoft advisory.
Authoritative sources & updates
Findings and update information come from the linked publishers. GTP compiles the public record and provides the recommendation above. CVSS ratings shown here come from Microsoft. NVD references provide additional public context.
Managed by GTP?
Griffin Technology Partners managed customers may receive additional environment-specific security guidance and remediation assistance through their managed services relationship.
Security bulletins are provided for informational purposes and compiled from authoritative public sources. Vulnerability applicability varies by environment. Validate affected products, configuration, compatibility requirements, and vendor guidance before making production changes.