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Security Bulletin: IBM API Connect Developer Portal is affected by a cross site scripting vulnerability in Bootstrap (CVE-2019-8331)

Security Bulletin


IBM API Connect has addressed the following vulnerability.

Vulnerability Details

CVEID: CVE-2019-8331
DESCRIPTION: Bootstrap is vulnerable to cross-site scripting, caused by improper validation of user-supplied input by the tooltip or popover data-template. A remote attacker could exploit this vulnerability to execute script in a victim's Web browser within the security context of the hosting Web site. An attacker could use this vulnerability to steal the victim's cookie-based authentication credentials.
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

IBM API Connect version 2018.1-2018.4.1.3


Affected Product Addressed in VRMF APAR Remediation/First Fix
IBM API Connect 
V2018.1 - 2018.4.1.3
2018.4.1.4 fixpack


Addressed in IBM API Connect v2018.4.1.4 fixpack.

Follow this link and find the appropriate 2018.4.1.4 portal package suitable for the form factor of your installation.

Workarounds and Mitigations


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Complete CVSS v3 Guide
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Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

April 4, 2019: Original bulletin 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.

Product Alias/Synonym

API Connect
Developer Portal

Document information

More support for: IBM API Connect

Component: Developer Portal

Software version: 2018.1-2018.4.1.3

Operating system(s): Platform Independent

Reference #: 0879483

Modified date: 04 April 2019