Problem

All versions of the API Portal are affected by CVE-2017-9934 and CVE-2017-9933 Joomla vulnerability
More details can be found from :

https://www.joomla.org/announcements/release-news/5709-joomla-3-7-3-release.html

Resolution

To fix this vulnerability it is necessary to upgrade to the latest Joomla version 3.7.3.

This needs to be done using the Joomla! Update component.

https://docs.joomla.org/J3.x:Updating_from_an_existing_version

Details on how to use this component can be found in the official Joomla documentation.