CVE-2026-118245 json
Highcharts Dashboards: `chartConstructor` is an unchecked lookup into the Highcharts namespace
published 2026-10-28 11 d ago modified 2026-10-29 10 d ago also GHSA-grj7-r4jv-pw9j , EUVD-2026-112308
- cvss
- 8.6
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 27%
- public exploits
- 0
- none known
Summary
Highcharts JS is a JavaScript charting library based on SVG. From 1.0.0 until 4.2.2, Highcharts Dashboards uses chartConstructor as an unchecked property lookup in the Highcharts namespace and invokes the selected member with the component container and chartOptions. An attacker who controls dashboard configuration can select a public utility function instead of a supported chart constructor, causing attacker-controlled options to be copied to the container as properties or attributes. Markup and event handlers can then execute in the hosting page origin when the board renders. No user interaction beyond rendering the board is required. This issue is fixed in 4.2.2.
Patch / fix
- npm @highcharts/dashboards 4.2.2
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 10 d ago
Exploit prediction
0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.6 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N |
| CNA | 4.0 | 8.6 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | @highcharts/dashboards | >=1.0.0, <4.2.2 |
4.2.2 |
Affected products
- highcharts highcharts
- @highcharts dashboards
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/highcharts/highcharts/commit/98d3652cdc4f66fbccbbb8b4184ecd8f647f74de
web
-
github.com
/highcharts/highcharts/security/advisories/GHSA-grj7-r4jv-pw9j
web
-
github.com
/highcharts/highcharts/releases/tag/dashboards-v4.2.2
web
-
nvd.nist.gov
/vuln/detail/CVE-2026-118245
advisory
-
github.com
/highcharts/highcharts
package
Sources
- CVE List CVE-2026-118245
- GitHub Advisory GHSA-grj7-r4jv-pw9j
- NVD CVE-2026-118245
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.