Improperly Controlled Modification of Dynamically-Determined Object Attributes in casperjs

Overview casperjs is a navigation scripting & testing utility for PhantomJS and SlimerJS. Affected versions of this package are vulnerable to Prototype Pollution via the mergeObjects utility function. PoC js var payload = JSON.parse'"proto": "a": "pwned"'; mergeObjects, payload; console.log.a; //...