Cross-site scripting in Highcharts Grid Pro cell renderer attributes
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Partial Red Hat: 4 without a fix
Attack profile from CVSS 4.0 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-79.
Summary
Highcharts Grid Pro from 2.0.0 before 3.2.0 and Highcharts Dashboards from 3.6.0 before 4.0.0 are affected. Grid Pro input renderers copy the cells.renderer.attributes and cells.editMode.renderer.attributes maps onto input or select elements with raw setAttribute calls, a case of improper neutralization of input during web page generation (CWE-79). An attacker who controls column configuration can add event-handler attributes that run script in the hosting page origin when a user hovers over, focuses or edits a cell.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| highcharts | highcharts | 2.0.0 to before 3.2.0 | 3.2.0 | Patch available | CNA |
| highcharts | grid-pro | 2.0.0 to before 3.2.0 | 3.2.0 | Patch available | CNA |
| highcharts | dashboards | 3.6.0 to before 4.0.0 | 4.0.0 | Patch available | CNA |
| — | @highcharts/grid-pro (npm) | 2.0.0 to before 3.2.0 | 3.2.0 | Patch available | GHSA-5ghw-9mgr-jvx2 |
| — | @highcharts/dashboards (npm) | 3.6.0 to before 4.0.0 | 4.0.0 | Patch available | GHSA-5ghw-9mgr-jvx2 |
- highcharts Vendorhighcharts Affected 2.0.0 to before 3.2.0 Fixed in 3.2.0 Patch available CNA
- grid-pro Vendorhighcharts Affected 2.0.0 to before 3.2.0 Fixed in 3.2.0 Patch available CNA
- dashboards Vendorhighcharts Affected 3.6.0 to before 4.0.0 Fixed in 4.0.0 Patch available CNA
- @highcharts/grid-pro (npm) Vendor— Affected 2.0.0 to before 3.2.0 Fixed in 3.2.0 Patch available GHSA-5ghw-9mgr-jvx2
- @highcharts/dashboards (npm) Vendor— Affected 3.6.0 to before 4.0.0 Fixed in 4.0.0 Patch available GHSA-5ghw-9mgr-jvx2
Remediation
Update Highcharts Grid Pro to 3.2.0, Highcharts Dashboards to 4.0.0 and Highcharts JS to 3.2.0. Red Hat lists Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 10 and Red Hat Enterprise Linux AI (RHEL AI) 3 as affected with no fix available.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
- Fix · CNA highcharts (highcharts) Fixed in 3.2.0
- Fix · CNA grid-pro (@highcharts) Fixed in 3.2.0
- Fix · CNA dashboards (@highcharts) Fixed in 4.0.0
- Fix · GHSA-5ghw-9mgr-jvx2 @highcharts/grid-pro (npm) Fixed in 3.2.0 Advisory →
- Fix · GHSA-5ghw-9mgr-jvx2 @highcharts/dashboards (npm) Fixed in 4.0.0 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux AI (RHEL AI) 3 | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-28 Threatist record created from CVE-2026-116797
- 2026-10-28 CISA SSVC decision points changed
- 2026-10-28 Priority changed: MEDIUM → LOW
- 2026-10-28 Alias added: GHSA-5ghw-9mgr-jvx2
- 2026-10-28 Fix available: npm/@highcharts/[email protected], npm/@highcharts/[email protected] · GHSA-5ghw-9mgr-jvx2
- 2026-10-28 CVSS score added · GHSA-5ghw-9mgr-jvx2
- 2026-10-28 Weakness changed · GHSA-5ghw-9mgr-jvx2
- 2026-10-28 4 new references · GHSA-5ghw-9mgr-jvx2
- 2026-10-30 Affected versions changed · Red Hat
- 2026-10-30 CVSS score added · Red Hat
References
More highcharts vulnerabilities
- TI-2026-82141 Highcharts Grid parses pagination language options as HTML CVSS 4.0HIGH 8.6
- TI-2026-82140 Cross-site scripting in Highcharts Dashboards fullscreen labels CVSS 4.0HIGH 8.4
- TI-2026-82139 Cross-site scripting in Highcharts Dashboards sidebar labels CVSS 4.0HIGH 8.4
- TI-2026-82131 Cross-site scripting in Highcharts Dashboards via chartConstructor CVSS 4.0HIGH 8.6
- TI-2026-82128 Cross-site scripting in Highcharts Grid icon definitions CVSS 4.0HIGH 8.5
- TI-2018-14772 In js/parts/SvgRenderer.js in Highcharts JS before 6.1.0, the use of backtracking regular… CVSS 3.0HIGH 7.5
Sources
- CVE-2026-116797 · CVE Program
- CVE-2026-116797 · NVD
- FIRST EPSS
- GHSA-5ghw-9mgr-jvx2 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-116797 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences