Vulnerability 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.
Related Weaknesses (CWE)
References
- https://github.com/highcharts/highcharts/commit/45b74403acafbe9f621c4a343506721d
- https://github.com/highcharts/highcharts/pull/25351
- https://github.com/highcharts/highcharts/releases/tag/grid-v3.2.0
- https://github.com/highcharts/highcharts/security/advisories/GHSA-6hgp-fmhr-mrg4
FAQ
What is CVE-2026-118255?
CVE-2026-118255 is a documented vulnerability. 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 control...
How severe is CVE-2026-118255?
CVSS scoring is not yet available for CVE-2026-118255. Check NVD for updates.
Is there a patch for CVE-2026-118255?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.