High severity · published Oct 28, 2026
CVE-2026-118255
Highcharts Grid: javascript: URL in credits.href runs script on click
New
8.4
CVSS
–
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DA
dashboards · @highcharts
>= 3.2.0, < 4.0.0 · source: vendor
GR
grid-pro · @highcharts
>= 2.0.0, < 3.2.0 · source: vendor
HI
highcharts · highcharts
< 13.0.0-beta.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-118255
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-118255
x_refsource_CONFIRM
https://github.com/highcharts/highcharts/security/advisories/GHSA-6hgp-fmhr-mrg4
x_refsource_MISC
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
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