CVE-2018-8547

Severity: medium (CVSS 5.4 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-11-14 · updated 2026-06-17
Weakness: CWE-79

Description

A cross-site-scripting (XSS) vulnerability exists when an open source customization for Microsoft Active Directory Federation Services (AD FS) does not properly sanitize a specially crafted web request to an affected AD FS server, aka "Active Directory Federation Services XSS Vulnerability." This affects Windows Server 2012 R2, Windows RT 8.1, Windows Server 2019, Windows Server 2016, Windows 8.1, Windows 10, Windows 10 Servers.

Affected products

Microsoft Windows 10 Version 1607: 1607, 1709, 1803, 1809
Microsoft Windows 8.1: all versions
Microsoft Windows RT 8.1: all versions
Microsoft Windows Server 2012: r2
Microsoft Windows Server 2016: 1709, 1803
Microsoft Windows Server 2019: all versions
Microsoft Windows 10 Version 1607: Version 1607 for 32-bit Systems, Version 1607 for x64-based Systems, Version 1709 for 32-bit Systems, Version 1709 for x64-based Systems, Version 1803 for 32-bit Systems, Version 1803 for ARM64-based Systems (+4)
Microsoft Windows 10 Servers: version 1709 (Server Core Installation), version 1803 (Server Core Installation)
Microsoft Windows 8.1: 32-bit systems, x64-based systems
Microsoft Windows RT 8.1: Windows RT 8.1
Microsoft Windows Server 2012 R2: (Server Core installation)
Microsoft Windows Server 2016: (Server Core installation)
Microsoft Windows Server 2019: (Server Core installation)

References

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