Vulnerability · Published Oct 28, 2026 · Assigned by GitHub_M
CVE-2026-116797Highcharts Grid Pro: cell-renderer `attributes` map written with raw `setAttribute`
High 8.5
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 25% 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 Pro input renderers copy the cells.renderer.attributes and cells.editMode.renderer.attributes maps to input or select elements with raw setAttribute calls. An attacker who controls column configuration can add event-handler attributes to every rendered row or to the control created when a cell enters edit mode. Script then runs in the hosting page origin when a user hovers over or focuses an input or begins editing. 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-5ghw-9mgr-jvx2 |
| npm | @highcharts/grid-pro | 3.2.0 | GHSA-5ghw-9mgr-jvx2 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| highcharts | highcharts | >= 2.0.0, < 3.2.0 |
| @highcharts | grid-pro | >= 2.0.0, < 3.2.0 |
| @highcharts | dashboards | >= 3.6.0, < 4.0.0 |
Weakness: CWE-79 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N