Options structure open to XSS if passed unfiltered
CVE-2021-29489

7.6HIGH

Key Information:

Vendor

Highcharts

Status
Highcharts
Vendor
CVE Published:
5 May 2021

What is CVE-2021-29489?

Highcharts JS is a JavaScript charting library based on SVG. 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. The vulnerability is patched in version 9. As a workaround, implementers who are not able to upgrade may apply DOMPurify recursively to the options structure to filter out malicious markup.

Affected Version(s)

highcharts < 9.0.0

References

https://github.com/highcharts/highcharts/security/advisor...
x_refsource_CONFIRM
https://security.netapp.com/advisory/ntap-20210622-0005/
x_refsource_CONFIRM

CVSS V3.1

Score:
7.6
Severity:
HIGH
Confidentiality:
Low
Integrity:
High
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.