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shvl@2.0.1 vulnerabilities

Get and set dot-notated properties within an object

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Direct Vulnerabilities

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

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Vulnerability Vulnerable Version
  • H
Prototype Pollution

shvl is a Get and set dot-notated properties within an object

Affected versions of this package are vulnerable to Prototype Pollution due to an incomplete fix not protecting against the constructor.prototype vector.

POC

var shvl = require("shvl")
let obj = {}
console.log("Before: " + {}.polluted)
shvl.set(obj, 'constructor.prototype.polluted', 'Polluted')
console.log("After: " + {}.polluted)

How to fix Prototype Pollution?

Upgrade shvl to version 3.0.0 or higher.

<3.0.0
  • H
Prototype Pollution

shvl is a Get and set dot-notated properties within an object

Affected versions of this package are vulnerable to Prototype Pollution. It allows an attacker to cause a denial of service and may lead to remote code execution.

How to fix Prototype Pollution?

Upgrade shvl to version 2.0.2 or higher.

>=1.0.0 <2.0.2
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