AutoWAFuzzer: An adaptive framework for web application firewall penetration testing with multi-agent system and RAG-enabled reinforcement learning. - Phan The Duy; Nguyen Ngoc Thanh; Pham Cong Lap; Van-Giau Ung; Khanh-Khoa Ngo; Tram Truong Huu; Van-Hau Pham (Expert Syst. Appl., 2026)