---
id: CVE-2026-120988
title: >-
  billboard.js before 4.1.3 allows an attacker to execute malicious JavaScript
  due to improper sanitization of series ids during legend template rendering.
summary: >-
  billboard.js before 4.1.3 allows an attacker to execute malicious JavaScript
  due to improper sanitization of series ids during legend template rendering.
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cvssSource: adp
cwe:
  - CWE-79
vendor: NAVER
product: billboard.js
affected:
  - billboard.js (all versions)
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-03T20:04:07.678691Z'
exploitAvailable: true
published: '2026-11-03'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T20:05:01.896Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-120988'
references:
  - url: 'https://cve.naver.com/detail/cve-2026-120988.html'
  - url: >-
      https://github.com/naver/billboard.js/security/advisories/GHSA-g5px-mcqp-3ghp
tags:
  - cve.org
  - exploit-available
epss: 0.00155
epssPercentile: 0.04614
ingestedAt: '2026-11-05T20:33:06.429Z'
---

## Overview

billboard.js before 4.1.3 allows an attacker to execute malicious JavaScript due to improper sanitization of series ids during legend template rendering.

## Affected

- `billboard.js (all versions)`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.