mux-poc HLS origin

Researcher-hosted HLS endpoint for a player.mux.com custom-domain hijack PoC. Only serves a single text-overlay demo clip. No data collection. Contact: bug bounty researcher cfreirev.

Reachable at:

• /MECFZgEm102d01XMx5ME1A28pAe34Z02eSL.m3u8 — master manifest
• /rendition.m3u8 — media playlist
• /segment_00X.ts — MPEG-TS segments

PoC URL (will play this HLS under Mux's player chrome):
https://player.mux.com/MECFZgEm102d01XMx5ME1A28pAe34Z02eSL?custom-domain=mux-poc.cfreirev.sh