Dokploy is a free, self-hostable Platform as a Service (PaaS). Prior to 0.29.13, Dokploy allows an authenticated user to execute arbitrary commands on a local or SSH-connected target server because registry.testRegistry and registry.testRegistryById in apps/dokploy/server/api/routers/registry.ts interpolate the password field into an execAsyncRemote shell command instead of using safeDockerLoginCommand. This issue is fixed in version 0.29.13.