Ended up finally going with IPC::Open3 for it's provision of STDERR readability on the child process. YIPEE! Thanks!
Final result (still beta for now, but secured with all suggestions and what info I could find in my research):
Enter a term to look up under the "Dictionary & Thesaurus" label
In reply to Re^5: Safely passing CGI form data to a shell command
by Tommy
in thread Safely passing CGI form data to a shell command
by Tommy
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