I have the following example (encrypted text and secret key):

It was tested in devglan

I tried this code, but isn't working.

var myPassword = "MassivePaymentConfigurat";

var encrypted = "6pjSh7cwGE1+zbTRlBlGSg==";
var decrypted = CryptoJS.AES.decrypt(encrypted, myPassword, {
  mode: CryptoJS.mode.ECB,
  padding: CryptoJS.pad.Pkcs7
});

console.log(decrypted.toString(CryptoJS.enc.Utf8));