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CVE PROGRAM SOURCE RECORD7.2 High

CVE-2026-116796

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

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

highcharts highcharts

  • >= 10.3.2, < 11.4.9affected
  • >= 12.0.0, < 12.6.2affected
  • >= 13.0.0, < 13.1.1affected

References