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Highcharts Dashboards: sidebar component labels are parsed as HTML

Exact source revision recorded 30 Oct 2026 19:45:26 UTC. It does not establish the source's current position. Latest evidence.

cve-program · CVE-2026-118252

Published

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.

Source published
28 Oct 2026 18:08:33 UTC
Source modified
30 Oct 2026 18:20:14 UTC
Observed here
30 Oct 2026 19:45:26 UTC
Source terms
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This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 4.0 · 8.4 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N

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Sources read 7 Nov 10:00 UTC · 275 of 275 readable · 273 fully read · documentation 469/469 current