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Security Bulletin: Cross-Site Scripting Vulnerability in IBM WebSphere Portal (CVE-2018-1673)

Security Bulletin


A fix is available for a cross-site scripting vulnerability in IBM WebSphere Portal (CVE-2018-1673).

Vulnerability Details

CVEID: CVE-2018-1673
DESCRIPTION: IBM WebSphere Portal is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.
CVSS Base Score: 6.1
CVSS Temporal Score: See for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)

Affected Products and Versions

Affected Product Affected Versions
IBM WebSphere Portal - CF15
IBM WebSphere Portal - CF15
IBM WebSphere Portal - CF23
IBM WebSphere Portal - CF30

For unsupported versions IBM recommends upgrading to a fixed, supported version of the product.


Product VRMF APARs Fix
IBM WebSphere Portal 9.0


Upgrade to Cumulative Fix 16 (CF16).
IBM WebSphere Portal 8.5


Upgrade to Cumulative Fix 16 (CF16).
IBM WebSphere Portal through 8.0.01 PH00469
Upgrade to Fix Pack with Cumulative Fix 23 (CF23) and then apply the Interim Fixes PH00469, PH00542.
IBM WebSphere Portal through PH00469 Upgrade to Fix Pack with Cumulative Fix 30 (CF30) and then apply the Interim Fix PH00469.

Workarounds and Mitigations


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Complete CVSS v3 Guide
On-line Calculator v3

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog


The vulnerability was reported to IBM by Giulio Comi

Change History

25 September 2018: Original version published

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.


According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

Document information

More support for: WebSphere Portal

Software version: 7.0, 8.0, 8.5, 9.0

Operating system(s): Platform Independent

Reference #: 0731155

Modified date: 25 September 2018