Who wrote the book of Colossians in the Bible?

The book of Colossians 1:1-2 tells us that the writer was Paul, who was accompanied by Timothy. He wrote the letter to the Colossian congregation from Rome around 60-61CE.

On the other hand, Fr. Raymond E. Brown, a member of the Vatican's Roman Pontifical Biblical Commission, says that, of the thirteen epistles which say that they were written by Paul, critical scholars have reached a near consensus that only seven are definitely Paul's: 1 Thessalonians, Galatians, 1 & 2 Corinthians, Philippians, Philemon and Romans. On this view, Colossians was written by an anonymous author late in the first century CE.