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UK Cyber Defence
VulnerabilityAwaiting Analysis

CVE-2026-4418

IBM Cloud Pak System 2.3.6.0, and 2.3.6.1 is vulnerable to HTML injection.

MEDIUM 5.4EPSS 0.17%

Does this matter?

Lower severity and a low EPSS score (0.17%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1
5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS
0.17% probability · 7th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-80
Source
psirt@us.ibm.com
EPSS trend
0%3%5%20 October 2026: 0.23%26 October 2026: 0.17%20 October 202626 October 2026

EPSS moved from 0.2% on 20 October 2026 to 0.2% on 26 October 2026.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.