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org.webjars.npm:undefsafe@2.0.2 vulnerabilities

  • latest version

    2.0.5

  • latest non vulnerable version

    2.0.5

  • first published

    6 years ago

  • latest version published

    1 years ago

  • licenses detected

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    Direct Vulnerabilities

    Known vulnerabilities in the org.webjars.npm:undefsafe package. This does not include vulnerabilities belonging to this package’s dependencies.

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    VulnerabilityVulnerable Version
    • M
    Prototype Pollution

    org.webjars.npm:undefsafe is a Simple function for retrieving deep object properties without getting "Cannot read property 'X' of undefined".

    Affected versions of this package are vulnerable to Prototype Pollution. The a function could be tricked into adding or modifying properties of Object.prototype using a __proto__ payload.

    PoC by JHU System Security Lab

    var a = require("undefsafe");
var payload = "__proto__.toString";
a({},payload,"JHU");
console.log({}.toString);

    How to fix Prototype Pollution?

    Upgrade org.webjars.npm:undefsafe to version 2.0.3 or higher.

    [,2.0.3)
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