GHSA-8j65-4pcq-xq95

Suggest an improvement
Source
https://github.com/advisories/GHSA-8j65-4pcq-xq95
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/05/GHSA-8j65-4pcq-xq95/GHSA-8j65-4pcq-xq95.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-8j65-4pcq-xq95
Aliases
Related
Published
2021-05-06T15:45:03Z
Modified
2023-11-08T04:05:35.657671Z
Severity
  • 7.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L CVSS Calculator
Summary
Options structure open to Cross-site Scripting if passed unfiltered
Details

Impact

In Highcharts versions 8 and earlier, the chart options structure was not systematically filtered for XSS vectors. The potential impact was that content from untrusted sources could execute code in the end user's browser. Especially when using the useHTML flag, HTML string options would be inserted unfiltered directly into the DOM. When useHTML was false, malicious code could be inserted by using various character replacement tricks or malformed HTML.

If your chart configuration comes from a trusted source like a static setup or pre-filtered HTML (or no markup at all in the configuration), you are not impacted.

Patches

In version 9, the whole rendering layer was refactored to use an DOMParser, an AST and tag and HTML allow-listing to make sure only safe content entered the DOM. In addition, prototype pollution was stopped.

Workarounds

Implementers who are not able to upgrade may apply DOMPurify recursively to the options structure to filter out malicious markup.

References

For more information

If you have any questions or comments about this advisory: * Visit our support page * For more Email us at security@highcharts.com

Database specific 
{
    "nvd_published_at": "2021-05-05T16:15:00Z",
    "cwe_ids": [
        "CWE-79"
    ],
    "severity": "HIGH",
    "github_reviewed": true,
    "github_reviewed_at": "2021-05-05T15:37:11Z"
}
References

Affected packages

npm / highcharts

Package

Name
highcharts
View open source insights on deps.dev
Purl
pkg:npm/highcharts

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
9.0.0