In affected versions of Octopus Server under certain circumstances it is possible for sensitive variables to be printed in the deployment variable snapshot in clear-text.

In affected versions of Octopus Server with certain access levels it was possible to embed a Cross-Site Scripting Payload via artifacts.

In affected versions of Octopus Server, permissions were not checked correctly resulting in any authenticated user being able to make server level changes using a certain API endpoint despite receiving an error.

In affected versions of Octopus Server it was possible for a low privileged user to manipulate an API request to change the signing key expiration and revocation time frames via an API endpoint that had incorrect permission validation. It was not possible to expose the signing keys using this vulnerability.

In affected versions of Octopus Server it was possible to create a new API key from an existing access token resulting in the new API key having a lifetime exceeding the original API key used to mint the access token.

In affected versions of Octopus Server with certain access levels it was possible to embed a Cross-Site Scripting payload on the audit page.

It was identified that in certain versions of Octopus Server, that a user created with no permissions could view all users, user roles and permissions. This functionality was removed in versions of Octopus Server after the fixed versions listed.