CVE-2026-118253
Published:October 28, 2026
Updated:November 01, 2026
Highcharts JS is a JavaScript charting library based on SVG. From 1.0.0 until 4.2.3, Highcharts Dashboards edit mode parses fullscreen language labels as HTML rather than inserting them as text. An attacker who controls Dashboards language options can supply markup with event handlers, which execute in the hosting page origin when the fullscreen control is rendered. The label is reachable only when edit mode is enabled and viewFullscreen is present in the context-menu items. This issue is fixed in 4.2.3.
Affected Packages
https://github.com/highcharts/highcharts.git (GITHUB):
Affected version(s) >=dashboards-v1.0.0 <dashboards-v4.2.2 || >=dashboards-v2.0.0 <dashboards-v4.2.2 || >=dashboards-v3.0.0 <dashboards-v4.2.2 || >=dashboards-v4.0.0 <dashboards-v4.2.2Fix Suggestion:
Update to version dashboards-v4.2.2@highcharts/dashboards (NPM):
Affected version(s) >=2.0.0 <4.2.2 || >=3.0.0 <4.2.2 || >=4.0.0 <4.2.2 || >=1.0.0 <4.2.2Fix Suggestion:
Update to version 4.2.2@highcharts/dashboards (NPM):
Affected version(s) >=1.0.0 <4.2.3Fix Suggestion:
Update to version 4.2.3Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.4
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
ACTIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation
EPSS
Base Score:
0.42