A Vulnerability in PHP Could Allow for Arbitrary Code Execution

https://www.us-cert.gov/ncas/current-activity/2019/09/27/ms-isac-releases-advisory-php-vulnerability

A vulnerability has been discovered in PHP, which could allow an attacker to execute arbitrary code. PHP is a programming language originally designed for use in web-based applications with HTML content. PHP supports a wide variety of platforms and is used by numerous web-based software applications. Successfully exploiting this vulnerability could allow for arbitrary code execution in the context of the affected application. Depending on the privileges associated with the application, an attacker could install programs; view, change, or delete data; or create new accounts with full user rights. Failed exploitation could result in a denial-of-service condition.