What is CVE-2026-11712?

CVE-2026-11712 is a critical-severity vulnerability in Ibm Websphere Application Server, classified under Cross-site Scripting. CVSS score: 9.3/10. Published 2026-06-30.

How severe is CVE-2026-11712?

Critical severity. CVSS v3 base score is 9.3 out of 10.

XSS in Ibm Websphere Application Server

CVE-2026-11712

IBM WebSphere Application Server 9.0, and 8.5 is affected by a cross-site scripting vulnerability in the administrative console help system.

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

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

Affected products

Ibm Websphere Application Server — versions 9.0, 8.5

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

psirt@us.ibm.com (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-11712?: CVE-2026-11712 is a critical-severity vulnerability in Ibm Websphere Application Server, classified under Cross-site Scripting. CVSS score: 9.3/10. Published 2026-06-30.
How severe is CVE-2026-11712?: Critical severity. CVSS v3 base score is 9.3 out of 10.