Security Advisory WSO2-2020-0734

Published: July 01, 2020

Version: 1.0.0

Severity: Medium

CVSS Score: 5.5 (CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:H/A:L)


  • WSO2 API Manager : 3.1.0 , 3.0.0
  • WSO2 IS as Key Manager : 5.10.0 , 5.9.0


Subscription workflow status of a tenant, can be modified by super tenant credentials via the REST API.


Updating workflow status can be performed by the admin REST API. This api is secured with basic authentication. The vulnerability here is that a workflow reference of a tenant can be modified by executing the REST API with super admin credentials.


This allows cross tenant access for subscription workflow update via REST API.


If you are using an affected product version, it is highly recommended to migrate to the latest released version to receive security fixes.

Otherwise, you may apply the relevant fixes to the product based on the public fix(s):


If you are a WSO2 customer with a support subscription, use WSO2 Update Manager(WUM) updates in order to apply the fix to the affected versions.


WSO2 thanks, {{reporter}} for responsibly reporting the identified issue and working with us as we addressed it.