Advisory Weakness Curation

Prototype Pollution in handlebars Versions of `handlebars` prior to 3.0.8 or 4.3.0 are vulnerable to Prototype Pollution leading to Remote Code Execution. Templates may alter an Objects' `__proto__` and `__defineGetter__` properties, which may allow an attacker to execute arbitrary code through crafted payloads. ## Recommendation Upgrade to version 3.0.8, 4.3.0 or later.

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') Versions of handlebars prior to 4.3.0 is 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.

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') 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.