cyfenced.com →

[ CVE-2026-116796 · Published 28 Oct 2026 ]

Highcharts Core: `javascript:` URL in an `xlink:href` attribute survives text filtering and reaches exported charts

CVSS 7.2 EPSS <1%Fix available

[ Description ]Official description

Highcharts JS is a JavaScript charting library based on SVG. From 10.3.2 until 11.4.9, 12.6.2, and 13.1.1, Highcharts accepts an SVG anchor xlink:href attribute without applying the allowed-scheme check used for href and src. An attacker who controls a chart text option can preserve a javascript URL in serialized chart output. When exported or server-rendered SVG is parsed again and a user activates the link, script runs in the origin of that document. This issue is fixed in 11.4.9, 12.6.2 and 13.1.1.

[ Fixes ]Fixes and patches

  • highcharts 11.4.9Fixed version · GitHub Advisories · npm package highcharts: upgrade to 11.4.9 or later (affected >= 10.3.2, < 11.4.9)
  • highcharts 12.6.2Fixed version · GitHub Advisories · npm package highcharts: upgrade to 12.6.2 or later (affected >= 12.0.0, < 12.6.2)
  • highcharts 13.1.1Fixed version · GitHub Advisories · npm package highcharts: upgrade to 13.1.1 or later (affected >= 13.0.0, <= 13.1.0)

[ Packages ]Affected open-source packages

[ References ]References