CVE-2021-29489CWE-79

Options structure open to XSS if passed unfiltered

High · published May 5, 2021

CVSS v3.1
7.6
EPSS
1%
Percentile
58.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.6 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L
CVSS v4.0
Not supplied
EPSS
0.00867 · 58.4th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2021-05-05T15:30Z
EPSS history
Timeline
  • 05 MAY 15:30Z
    Options structure open to XSS if passed unfiltered
    cvelistv5