Vulnerability · Published Oct 28, 2026 · Assigned by GitHub_M
CVE-2026-118255Highcharts Grid: javascript: URL in credits.href runs script on click
High 8.4
In plain English
A high-severity cross-site scripting in dashboards from @highcharts. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 29% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Highcharts JS is a JavaScript charting library based on SVG. From 2.0.0 until 3.2.0, Highcharts Grid applies credits.href to the credits link without validating the URL scheme. An attacker who controls Grid configuration can provide a javascript URL, and activating the credits link runs script in the origin of the hosting page with access to that application's data and session state.This issue is fixed in Grid Pro 3.2.0.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | @highcharts/dashboards | 4.0.0 | GHSA-6hgp-fmhr-mrg4 |
| npm | @highcharts/grid-pro | 3.2.0 | GHSA-6hgp-fmhr-mrg4 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| highcharts | highcharts | < 13.0.0-beta.2 |
| @highcharts | dashboards | >= 3.2.0, < 4.0.0 |
| @highcharts | grid-pro | >= 2.0.0, < 3.2.0 |
Weakness: CWE-79 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N
References
- https://github.com/highcharts/highcharts/security/advisories/GHSA-6hgp-fmhr-mrg4 x_refsource_CONFIRM
- https://github.com/highcharts/highcharts/pull/25351 x_refsource_MISC
- https://github.com/highcharts/highcharts/commit/45b74403acafbe9f621c4a343506721d9129e991 x_refsource_MISC
- https://github.com/highcharts/highcharts/releases/tag/grid-v3.2.0 x_refsource_MISC