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CVE-2026-4418IBM Cloud Pak System HTML Injection

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.

Timeline

  1. ID reserved

    By ibm

  2. · 7 months later

    Published

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2026-4418, by who scored it
Scored byCVSSScoreVector
ibmCNA (assigner)3.1Medium5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVDNVD · Analyzed3.1Medium5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS (exploitation in 30 days)
0.18% · top 93% of all CVEs (13 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.4.

Affected products

What to do

Solution: IBM strongly recommends addressing the vulnerability now by https://www.ibm.com/support/pages/node/7284365 For unsupported versions the recommendation is  to upgrade to supported version of the product.

References

References1

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

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Record last updated .