Security Advisory WSO2-2019-0501

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)


  • WSO2 API Manager 2.6.0


API Store is vulnerable to a potential Stored Cross-Site Scripting (XSS) vulnerability.


The XSS vulnerability is discovered in the Forum feature of the Store application.


The exploitability of the vulnerabilities is less as there are multiple steps associated with the flow. In the event of a successful attack, the injected script would get executed in the user's browser, which may generate malicious page results that would mislead the victim 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-4.4.0-3475


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.