Get fast, actionable insights on the critical PHP2Shell security vulnerabilities (CVE-2026-109618 / CVE-2026-109619). Learn how it works and how to upgrade your PHP version. The risk is massive if your server runs the scripting language called PHP or Hypertext Preprocessor. PHP vulnerability, CVE-2026-109618, CVE-2026-109619, PHP2Shell, web security, PHP upgrade, Drupal security