Post #5432 2.33K Jan 20, 2026, 07:18 UTC Cloudflare Zero-day: Accessing Any Host Globallyhttps://fearsoff.org/research/cloudflare-acme fearsoff.org Cloudflare Zero-day: Accessing Any Host Globally Discover how a Cloudflare WAF bypass in /.well-known/acme-challenge/ exposed origins, its impact, and the fix. A must-read for security pros.