Attempting to Decrypt an AES-256-CBC Encrypted File but Decryption Password isn't known

I am trying to decrypt a password protected file that was encrypted using AES-256-CBC, but the password to decrypt the file has been forgotten.

In this simulation, I do know the password is a dictionary word, and I have a word list to try a dictionary attack against the password. I also know that no salt was used when encrypting the file. But I am unsure on how to find the right method to do this.

My mind keeps going to JTR, but I need to use OpenSSL commands. I would appreciate the help!

I am using OpenSSL 1.1.1 and Ubuntu 16.04 LTS.