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Published: 07th October 2019

Severity: Medium

CVSS Score: 6.1 (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N) 


WSO2 API Manager

WSO2 API Manager Analytics

WSO2 IS as Key Manager

WSO2 Identity Server

WSO2 Identity Server Analytics


A possible Cross-Site Scripting (XSS) vulnerability has been detected in the management console.


If there is a claim dialect configured with an XSS payload in the dialect URI, if a user picks up the malicious dialect URI and adds it as the service provider claim dialect while configuring the service provider, that payload gets executed. The attacker also needs to have privileges to log in to the management console, add and configure claim dialects.


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. However, since all the session related sensitive cookies are set with httpOnly flag and protected, session hijacking or similar attacks would not be possible.


If you are using the latest released version of the above mentioned affected products

Apply the following patch based on your product version by following the instructions in the README file. If you have any questions, post them to [email protected].

Please download the relevant patch based on the product you use following the matrix below. The patch can also be downloaded from http://wso2.com/security-patch-releases/.






WSO2 API Manager



IS KMWSO2 IS as Key Manager5.7.0


ISWSO2 Identity Server5.8.0


For other products

Upgrade the products to the latest released version which are not affected by this vulnerability.

Note: If you are a WSO2 customer with Support Subscription, please 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 affected products than the ones mentioned in the “SOLUTION” section, this vulnerability is fixed. 

It is highly recommended to migrate older versions of the WSO2 products to the latest released version to receive security fixes.


WSO2 thanks, Sathish Kumar Balakrishnan (Cyber Security Works Pvt Ltd) for responsibly reporting the identified issue and working with us as we addressed them.

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