CVE-2026-18872 IBM Financial Transaction Manager (FTM) - Stored XSS

IBM Financial Transaction Manager (FTM) for RedHat OpenShift contains a stored cross-site scripting caused by script injection in the NetworkAcknowledgement React component, letting authenticated operators have their sessions hijacked and perform unauthorized payment actions, exploit requires operator authentication.

CVSS base score 9.3 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.19% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Stored XSS
Impact
Stored XSS
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Published
23 September 2026
Updated
15 October 2026
Weakness
CWE-79

Vendor fix

Update to the latest version with the fix applied.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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