CVE-2026-18131
HIGH 8.2IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote attacker to execute arbitrary JavaScript in an authenticated user's browser due to improper neutralization of HTML input.
ELEVATED IMPACT
Severe if exploited (CVSS 8.2), but no known exploitation and low modeled probability. Patch on a normal cadence.
Exploitation likelihood
0.2%chance of exploitation in 30 days · 11th percentile
○ In CISA KEV
○ Public exploit / PoC
Impact if exploited
8.2CVSS 3.1 · HIGH
- ConfidentialityLow
- IntegrityHigh
- AvailabilityNone
What an attacker needs
- ✓Access: Reachable over the network — no local access needed
- ✓Privileges: No account or privileges required
- ⚠User interaction: A user must take an action (click / open a file)
- ✓Complexity: No special conditions — reliably repeatable
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept & exploit code
- github-search Search GitHub for public PoC repos
Test against your own equipment
curl -s https://vulnpedia.com/cve/CVE-2026-18131/poc.jsonMachine-readable PoC index for this CVE (for automation).Listed for defensive triage, patch verification, and authorized testing on systems you own. Machine-readable: /cve/CVE-2026-18131/poc.json
Affected
Products Financial Transaction Manager (Ftm) For Redhat Openshift Financial Transaction Manager Openshift
Weakness (CWE)
- CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N
Known Affected Software Configurations
| Vendor | Product | Version range |
|---|---|---|
| Ibm | Financial Transaction Manager | ≥ 4.0.7.0 and < 4.0.11.0 |
| Ibm | Financial Transaction Manager | 4.0.6.0 |
| Ibm | Financial Transaction Manager | 4.0.6.0 |
| Ibm | Financial Transaction Manager | 4.0.6.0 |
| Ibm | Financial Transaction Manager | 4.0.6.0 |
| Ibm | Financial Transaction Manager | 4.0.6.0 |
| Ibm | Financial Transaction Manager | 4.0.6.0 |
| Ibm | Financial Transaction Manager | 4.0.6.0 |
All CVSS metrics
- HIGH 8.2 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N - HIGH 8.2 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N - MEDIUM 6.1 v3.1 · NVD Primary
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N