CVE-2019-19919: nodejs-handlebars: prototype pollution leading to remote code execution via crafted payloads

Severity: Critical

CVSS Score: 9.8

Versions of handlebars prior to 4.3.0 are vulnerable to Prototype Pollution leading to Remote Code Execution. Templates may alter an Object's __proto__ and __defineGetter__ properties, which may allow an attacker to execute arbitrary code through crafted payloads.