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Prototype pollution in chart.js

High severity GitHub Reviewed Published May 10, 2021 to the GitHub Advisory Database • Updated Jan 27, 2023

Package

npm chart.js (npm)

Affected versions

< 2.9.4

Patched versions

2.9.4

Description

This affects the package chart.js before 2.9.4. The options parameter is not properly sanitized when it is processed. When the options are processed, the existing options (or the defaults options) are deeply merged with provided options. However, during this operation, the keys of the object being set are not checked, leading to a prototype pollution.

References

Published by the National Vulnerability Database Oct 29, 2020
Reviewed Apr 20, 2021
Published to the GitHub Advisory Database May 10, 2021
Last updated Jan 27, 2023

Severity

High
7.5
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses

CVE ID

CVE-2020-7746

GHSA ID

GHSA-h68q-55jf-x68w

Source code

No known source code
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