PHP CVE-2026-109618/109619 — self-contained unauthenticated RCE on stock PHP 8.5.11 (in-band PS(id)→cookie memory disclosure + UAF chain), full control ladders, fixed-version negative control on 8.5.12
🐘 php2shell(CVE-2026-109618 / CVE-2026-109619)复现靶场 — session.upload_progress 文件名注入 + LFI → RCE,Docker 一键启动,附中文原理分析与 PoC