Cross-site scripting in highcharts - #VU152788
Published: September 29, 2026
Vulnerability identifier: #VU152788
CSH Severity: Low
CVSS v4: 2.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: N/A
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary code.
The vulnerability exists due to improper neutralization of input in the HTML text parser when re-rendering a chart from a beforeprint handler in Chromium while printing. A remote user can provide crafted markup in chart configuration to execute arbitrary code.
This affects HTML-rendered text options, including useHTML titles, axis labels, data labels, and text set by responsive rules.
Affected software
highcharts
Remediation
Install security update from vendor's website.
highcharts - addressed in versions 12.6.1, 13.1.0