In Tiny File Manager before 2.3.9, there is a remote code execution via Upload from URL and Edit/Rename files. Only authenticated users are impacted.
The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.