CVE-2026-4418
Received Received - Intake

HTML Injection Vulnerability in IBM Cloud Pak System

Publication date: 2026-10-19

Last updated on: 2026-10-19

Assigner: IBM Corporation

Description
IBM Cloud Pak System 2.3.6.0, and 2.3.6.1 is vulnerable to HTML injection. A remotely authenticated attacker could inject malicious HTML code, which when viewed, would be executed in the victim's Web browser within the security context of the hosting site.

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Meta Information

Published
2026-10-19
Last Modified
2026-10-19
Generated
2026-10-19
AI Q&A
2026-10-19
EPSS Evaluated
N/A
NVD
CVE-2026-4418
EUVD
EUVD-2026-104520

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
IBM Cloud Pak System 2.3.6.0
IBM Cloud Pak System 2.3.6.1

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-80 The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages.

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Executive Summary

IBM Cloud Pak System 2.3.6.0 and 2.3.6.1 is vulnerable to HTML injection. A remotely authenticated attacker could inject malicious HTML code that, when viewed, executes in the victim's browser within the hosting site's security context.

Detection Guidance

This vulnerability involves HTML injection in IBM Cloud Pak System. Detection requires reviewing web application logs for suspicious HTML or script input in user-supplied fields. Check for unusual characters like <, >, or javascript: in input fields or URLs. No specific commands are provided in the context.

Impact Analysis

An attacker could steal sensitive data like session cookies, perform actions on your behalf, or redirect you to malicious sites. This requires the attacker to have remote authentication access.

Compliance Impact

This vulnerability could lead to unauthorized data access or modification, violating GDPR's data protection principles or HIPAA's security requirements for protected health information.

Mitigation Strategies

Apply IBM's official patches or updates for IBM Cloud Pak System 2.3.6.0 and 2.3.6.1 to address the HTML injection vulnerability. Ensure all users are authenticated and limit unnecessary privileges to reduce attack surface.

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