Dokploy: OS Command Injection in backup/restore pipeline via unescaped user-controlled shell arguments

Dokploy is a free, self-hostable Platform as a Service (PaaS). Prior to 0.29.13, Dokploy's backup and restore pipeline constructs shell commands by directly interpolating user-controlled database fields into bash -c "..." and sh -c "..." strings, then executes them via child_process.exec(). An authenticated admin/owner can inject arbitrary OS commands that execute on the host machine running Dokploy (not just inside a container). This vulnerability is fixed in 0.29.13.