According to the listing from Wikipedia, it was written in the 13th century. It's author is unknown.
The claim is that based on style of language, it probably originated in Germany. From the time frame, it sounds like it followed on the heels of the notorious 'Disputation of Paris' which took place about the same time. There was a lot of communication between the Jewish communities of Paris and Wurms. Students studied in both locations at that time.
The consequence of the disputation was the burning of 24 wagonloads of handwritten Talmuds.
It is worth noting that the title ספר נצחון ישן (The Old Book of Victory) may be an anagram for ספר נצחון ישו נוצרי. (The Book of the Victory or Eternality of Jesus of Nazareth)
The content is strongly anti-Christian and appears to be based exclusively on the Tanach. This detail would be relevant in the context of the dispute of Paris that focused only on the Talmud because Christianity viewed Tanach as essential to their theology.
A critical edition translated into English can be found at Amazon.
This would likely be the best place to search for any references among late Rishonim or Acharonim.