CVE-2026-11712 PUBLISHED

IBM WebSphere Application Server is affected by a cross-site scripting vulnerability

Assigner: ibm
Reserved: 09.06.2026 Published: 30.06.2026 Updated: 01.07.2026

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

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
CVSS Score: 9.3

Product Status

Vendor IBM
Product WebSphere Application Server
Versions
  • Version 9.0 is affected
  • Version 8.5 is affected

Solutions

IBM strongly recommends addressing the vulnerability now by applying a currently available interim fix or fix pack that contains the fix for APAR PH71756.

Attention: After installing the interim fix or fixpack, please follow the additional instructions provided in the interim fix link referenced below to complete the remediation.

For IBM WebSphere Application Server traditional:

For V9.0.0.0 through 9.0.5.28: · Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves PH71756 https://www.ibm.com/support/pages/node/7278563 --OR-- · Apply Fix Pack 9.0.5.29 or later (targeted availability 3Q2026)

For V8.5.0.0 through 8.5.5.30: · Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves PH71756 https://www.ibm.com/support/pages/node/7278563  and carefully follow the instructions for steps required after fix installation.  --OR-- · Apply Fix Pack 8.5.5.31 or later (targeted availability 3Q2026) and carefully follow the instructions in PH71756 for steps required after fixpack installation. . 

Additional interim fixes may be available and linked off the interim fix download page.

References

Problem Types

  • CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE