Reflected Cross-Site Scripting Vulnerability in IBM WebSphere Application Server
CVE-2026-16186

5.4MEDIUM

Key Information:

Vendor

IBM
Status
Websphere Application Server
Vendor
CVE Published:
14 September 2026

What is CVE-2026-16186?

A reflected cross-site scripting vulnerability has been identified in IBM WebSphere Application Server versions 9.0 and 8.5. This security flaw can allow an attacker to inject malicious scripts into web pages viewed by users, potentially leading to session hijacking, data theft, or unauthorized actions performed on behalf of users. It is crucial for organizations utilizing these versions of WebSphere Application Server to apply necessary patches and security measures to mitigate the risks associated with this vulnerability.

Affected Version(s)

WebSphere Application Server 9.0

WebSphere Application Server 8.5

References

https://www.ibm.com/support/pages/node/7286610
vendor-advisorypatch

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.