Script Injection Vulnerability in Highcharts JavaScript Charting Library
CVE-2026-118251

8.4HIGH

Key Information:

Vendor

Highcharts

Vendor
CVE Published:
28 October 2026

What is CVE-2026-118251?

A security vulnerability in the Highcharts JavaScript charting library can result in script injection. If a user clicks the credits label in charts before versions 11.4.9, 12.6.1, and 13.1.0, the library allows unvalidated URLs to open, potentially leading to execution of malicious scripts hosted on an attacker-controlled site. This vulnerability affects Highcharts, Highcharts Stock, Highcharts Maps, and Highcharts Gantt, necessitating immediate update to versions that mitigate this issue.

Affected Version(s)

highcharts < 11.4.9 < 11.4.9

highcharts >= 12.0.0, < 12.6.1 < 12.0.0, 12.6.1

highcharts >= 13.0.0, < 13.1.1 < 13.0.0, 13.1.1

References

CVSS V4

Score:
8.4
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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