CVE-2026-118248

— UNSCOREDpublic exploit available

Published 2026-10-28 · Updated 2026-10-28

AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.

NVD description

Highcharts JS is a JavaScript charting library based on SVG. From 1.0.0 until 4.2.2, Highcharts Dashboards edit mode walks editableOptions propertyPath segments without rejecting prototype-related keys. An attacker who controls editableOptions can provide a path through __proto__ or constructor, and a user's edit writes the configured value onto Object.prototype. The property then becomes visible to JavaScript throughout the page, with consequences determined by the consuming application. This issue is fixed in 4.2.2.

Weaknesses

CWE-1321

Public exploit & PoC references

https://github.com/highcharts/highcharts/commit/05efb9849130461fe61992ea8f58d22edaad978b
https://github.com/highcharts/highcharts/releases/tag/dashboards-v4.2.2
https://github.com/highcharts/highcharts/security/advisories/GHSA-wg5j-9wp8-2ggm

All references

https://github.com/highcharts/highcharts/commit/05efb9849130461fe61992ea8f58d22edaad978b
https://github.com/highcharts/highcharts/releases/tag/dashboards-v4.2.2
https://github.com/highcharts/highcharts/security/advisories/GHSA-wg5j-9wp8-2ggm

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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