PHP2Shell (CVE-2026-109618 and CVE-2026-109619): Why Patching Alone Isn't Enough
Two critical vulnerabilities in PHP, CVE-2026-109618 and CVE-2026-109619, allow attackers to execute code on vulnerable web servers without authentication. PHP released fixes on October 21, 2026, including versions 8.5.12, 8.4.27, 8.3.36 and 8.2.35. But patching your servers is only part of the response. Organizations must also understand what their websites delivered to customers during the exposure window, including scripts served by third-party vendors whose infrastructure may have been vulnerable.