November 14, 2026

CVE Watchtower

CVE-2026-18196Ibm App Connect Enterprise Cross-site Scripting (XSS)

NVDCVSS scored by psirt@us.ibm.com

Vulnerability Summary

IBM App Connect Enterprise 13.0.1.0 through 13.0.8.2, and 12.0.1.0 through 12.0.12.30 could allow a remote attacker to inject arbitrary HTML due to improper output neutralization.
Severity Level
MEDIUM(5.4)
Published Date
Nov 8, 2026
Last Modified
Nov 10, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.23%Probability
Root Weakness (CWE)
CWE-79: Cross-site Scripting (XSS) β†—
The software does not neutralize user-controllable input before it is placed in output that is used as a web page.
CVSS v3.1 Base Metrics — Score 5.4 (MEDIUM)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

Affected & Patched Versions

Affected Versions
  • Ibm App Connect Enterprise >= 12.0.1.0 and < 12.0.12.31
  • Ibm App Connect Enterprise >= 13.0.1.0 and < 13.0.9.0
Patched Versions
  • Ibm App Connect Enterprise 12.0.12.31
  • Ibm App Connect Enterprise 13.0.9.0

What to do

Fix it during your normal patch cycle. No exploitation is confirmed yet.

  1. Check whether you run Ibm App Connect Enterprise and which version.
  2. Update to a patched version listed above, then confirm the new version.

Timeline

  • Nov 8, 2026Published
  • Nov 10, 2026Record last modified

Score, severity and exploitation changes are tracked from the day Watchtower started logging them.

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External References

Data last checked: Nov 14, 2026 01:09 UTC