Vulnerability Description
Highcharts JS is a JavaScript charting library based on SVG. From 1.0.0 until 4.2.3, Highcharts Dashboards edit-mode sidebar parses component language strings as HTML rather than inserting them as text. An attacker who controls the Dashboards language configuration can provide markup containing event handlers, which execute in the hosting page origin when a user opens the edit-mode sidebar and the affected labels render. This issue is fixed in 4.2.3.
Related Weaknesses (CWE)
References
- https://github.com/highcharts/highcharts/commit/e65f8c21b9974dcccfa1c600a375d836
- https://github.com/highcharts/highcharts/releases/tag/dashboards-v4.2.3
- https://github.com/highcharts/highcharts/security/advisories/GHSA-rcqf-f6h2-ccg9
FAQ
What is CVE-2026-118252?
CVE-2026-118252 is a documented vulnerability. Highcharts JS is a JavaScript charting library based on SVG. From 1.0.0 until 4.2.3, Highcharts Dashboards edit-mode sidebar parses component language strings as HTML rather than inserting them as tex...
How severe is CVE-2026-118252?
CVSS scoring is not yet available for CVE-2026-118252. Check NVD for updates.
Is there a patch for CVE-2026-118252?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.