Both are correct. Both mean the same thing. The first is usually used. The active infinitive (to discuss) is frequently and commonly used with the passive meaning (to be discussed). There are a lot of chores to do before we're finished. (=chores to be done) I have three books to read. (=books to be read) On the table was a stack of bills to pay.
Taking the sentences in their entirety, there's a shade of difference in meaning.
My sense of the first on is that you are being presented a list of issues which you are to discuss, or are to personally arrange for others to discuss. That is, "Here is the list of issues [for you] to discuss on Monday." Without t