XSS in IBM Financial Transaction Manager (Ftm) For Red Hat Openshift

CVE-2026-18872

IBM Financial Transaction Manager (FTM) for RedHat OpenShift is vulnerable to stored cross-site scripting (CWE-79) in the FTM UI NetworkAcknowledgement React component (NetworkAcknowledgement.jsx:42). A malicious actor can inject script into stored network acknowledgement data that executes in authenticated operator browsers, enabling session hijacking and unauthorized operator-level payment actions.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.3 (Critical). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-18872?
CVE-2026-18872 is a critical-severity vulnerability in IBM Financial Transaction Manager (Ftm) For Red Hat Openshift, classified under Cross-site Scripting. CVSS score: 9.3/10. Published 2026-09-23.
How severe is CVE-2026-18872?
Critical severity. CVSS v3 base score is 9.3 out of 10.