Security Advisory WSO2-2019-0504

Published: January 29, 2019

Severity: Low

CVSS Score: 3.5 (CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N)


  • API Manager 2.6.0
  • WSO2 IS as Key Manager 5.7.0
  • WSO2 Identity Server 5.7.0


Above WSO2 products are vulnerable to a potential Reflected Cross-Site Scripting (XSS) vulnerability.


This vulnerability is discovered in the OIDC claim management flow in the Carbon Console.


By leveraging an XSS attack, an attacker can make the browser get redirected to a malicious website, make changes in the UI of the web page, retrieve information from the browser or harm otherwise.


Apply the following patches based on your product version by following the instructions in the README file. If you have any questions, post them to

Download the relevant patches based on the products you use following the matrix below. Patches can also be downloaded from Security Patch Releases.

Code Product Version Patch
AM WSO2 API Manager 2.6.0 WSO2-CARBON-PATCH-4.4.0-3537
IS KM WSO2 IS as Key Manager 5.7.0 WSO2-CARBON-PATCH-4.4.0-3537
IS WSO2 Identity Server 5.7.0 WSO2-CARBON-PATCH-4.4.0-3537


If you are a WSO2 customer with a support subscription, use WSO2 Update Manager (WUM) updates in order to apply the fix. This patch is intended for WSO2 community (free) users.

If you are using newer versions of the products than the ones mentioned in the SOLUTION section, this vulnerability is fixed.


WSO2 thanks, Julien Oury--Nogues for responsibly reporting the identified issues and working with us as we addressed them.