CVE-2018-8326

Name: CVE-2018-8326
Creator: NVD / NIST
Published: 2018-07-11T00:29:02.507+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.37%

Last modified Jun 17, 2026

CVE-2018-8326 is a vulnerability of currently unknown severity. 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 "Open Source Customization for Active Directory Federation Services XSS Vulnerability." This affects Web Customizations.. EPSS estimates a 2.37% chance of exploitation in the next 30 days.

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 "Open Source Customization for Active Directory Federation Services XSS Vulnerability." This affects Web Customizations.

Metrics

EPSS Probability

2.37%

81.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Microsoft	Web Customizations	< 0.1

References

http://www.securityfocus.com/bid/104656Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041266Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8326Patch, Vendor Advisory
http://www.securityfocus.com/bid/104656Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041266Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8326Patch, Vendor Advisory

Timeline

Published: Jul 11, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-8326?

How severe is CVE-2018-8326?

Severity scoring for CVE-2018-8326 is pending analysis. The EPSS model estimates a 2.37% probability of exploitation in the next 30 days.

How do I fix CVE-2018-8326?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-8326?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST