Framing the php2shell story as "AI uncovered php2shell" is like hearing an awesome song and crediting the guitar instead of the player. It's just incorrect and steals credit from a good researcher.
The underlying bug was discovered in 2020, a related one in 2024, and they were both rediscovered again through exploitation in 2026 by a human researcher. The researcher used LLM tech to help with parts of the process, not all of it, and says so in the writeup.