---
title: "CVE-2026-116796: Highcharts JS - Stored XSS"
description: "Highcharts JS 10.3.2 to < 11.4.9, 12.6.2, and 13.1.1 contains a stored XSS caused by lack of allowed-scheme check on SVG anchor xlink:href attribute, letting attackers execute script when users activate crafted links in exported SVG, exploit requires attacker control of chart text option."
url: https://panop.io/threat-heartbeat/CVE-2026-116796/
---

# CVE-2026-116796 Highcharts JS - Stored XSS

Highcharts JS 10.3.2 to < 11.4.9, 12.6.2, and 13.1.1 contains a stored XSS caused by lack of allowed-scheme check on SVG anchor xlink:href attribute, letting attackers execute script when users activate crafted links in exported SVG, exploit requires attacker control of chart text option.

CVSS base score 7.2 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-116796)

## Details

Type

Stored XSS

Impact

Stored XSS

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Published

28 October 2026

Updated

29 October 2026

Weakness

[CWE-79](https://cwe.mitre.org/data/definitions/79.html)

## Vendor fix

Update to versions 11.4.9, 12.6.2, or 13.1.1 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-116796](https://nvd.nist.gov/vuln/detail/CVE-2026-116796)
- [https://github.com/highcharts/highcharts/commit/6cf359fb144aa51fdc105e2b9bbd013439b02c88](https://github.com/highcharts/highcharts/commit/6cf359fb144aa51fdc105e2b9bbd013439b02c88)
- [https://github.com/highcharts/highcharts/releases/tag/v13.1.1](https://github.com/highcharts/highcharts/releases/tag/v13.1.1)
- [https://github.com/highcharts/highcharts/security/advisories/GHSA-mw4f-gj5x-6xr4](https://github.com/highcharts/highcharts/security/advisories/GHSA-mw4f-gj5x-6xr4)

[← All CVEs](https://panop.io/threat-heartbeat/)

## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

[Book a demo](https://panop.io/demo)