CVE-2026-50684

Medium

Description

Improper neutralization of input during web page generation ('cross-site scripting') in Active Directory Federation Services (AD FS) allows an authorized attacker to perform spoofing over a network.

SeverityMedium

CVSS4.8

Exploit probability—

Product

Microsoft Windows

PublishedJul 14, 2026

First seenJul 14, 2026

Weakness typeCWE-79Cross-site scripting (XSS)

How to fix

Update

microsoft windows_10_160710.0.14393.9339 or later
microsoft windows_10_180910.0.17763.9020 or later
microsoft windows_server_201610.0.14393.9339 or later
microsoft windows_server_201910.0.17763.9020 or later
microsoft windows_server_202210.0.20348.5386 or later
microsoft windows_server_202510.0.26100.33158 or later

Patches

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50684

Affected products

Product	Affected versions	Fixed in
microsoft windows_10_1607	v < 10.0.14393.9339	10.0.14393.9339
microsoft windows_10_1809	v < 10.0.17763.9020	10.0.17763.9020
microsoft windows_server_2012	No range specified, r2	—
microsoft windows_server_2016	v < 10.0.14393.9339	10.0.14393.9339
microsoft windows_server_2019	v < 10.0.17763.9020	10.0.17763.9020
microsoft windows_server_2022	v < 10.0.20348.5386	10.0.20348.5386
microsoft windows_server_2025	v < 10.0.26100.33158	10.0.26100.33158

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