In affected versions of Octopus Server the help sidebar can be customized to include a Cross-Site Scripting payload in the support link.

In affected versions of Octopus Server an Insecure Direct Object Reference vulnerability exists where it is possible for a user to download Project Exports from a Project they do not have permissions to access. This vulnerability only impacts projects within the same Space.

All versions of package @discordjs/opus are vulnerable to Denial of Service (DoS) when trying to encode using an encoder with zero channels, or a non-initialized buffer. This leads to a hard crash.

In Octopus Server after version 2022.1.1495 and before 2022.1.2647 if private spaces were enabled via the experimental feature flag all new users would have access to the Script Console within their private space.

When generating a user invitation code in Octopus Server, the validity of this code can be set for a specific number of users. It was possible to bypass this restriction of validity to create extra user accounts above the initial number of invited users.

In affected Octopus Server versions when the server HTTP and HTTPS bindings are configured to localhost, Octopus Server will allow open redirects.

When Octopus Server is installed using a custom folder location, folder ACLs are not set correctly and could lead to an unprivileged user using DLL side-loading to gain privileged access.

In Octopus Server after version 2018.8.2 if the Octopus Server Web Request Proxy is configured with authentication, the password is shown in plaintext in the UI.

OctopusDSC is a PowerShell module with DSC resources that can be used to install and configure an Octopus Deploy Server and Tentacle agent. In OctopusDSC version 4.0.977 and earlier a customer API key used to connect to Octopus Server is exposed via logging in plaintext. This vulnerability is patched in version 4.0.1002.

In Octopus Deploy through 2020.4.2, an attacker could redirect users to an external site via a modified HTTP Host header.