CVE-2026-1513
📋 TL;DR
This cross-site scripting (XSS) vulnerability in billboard.js allows attackers to inject and execute malicious JavaScript code when users interact with vulnerable charts. It affects web applications using billboard.js for data visualization where user input isn't properly sanitized before chart rendering.
💻 Affected Systems
- billboard.js
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete account takeover, session hijacking, credential theft, or malware distribution to all users viewing compromised charts.
Likely Case
Session hijacking, credential theft from users interacting with malicious charts, or defacement of chart content.
If Mitigated
Limited to content manipulation within the chart visualization area if proper CSP headers and input validation are implemented.
🎯 Exploit Status
Exploitation requires user interaction with malicious charts but doesn't require authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.18.0 and later
Vendor Advisory: https://github.com/naver/billboard.js/releases/tag/3.18.0
Restart Required: No
Instructions:
1. Update billboard.js dependency to version 3.18.0 or later. 2. Update package.json to specify 'billboard.js': '^3.18.0'. 3. Run npm update or yarn upgrade. 4. Rebuild and redeploy your application.
🔧 Temporary Workarounds
Input Sanitization
allImplement strict input validation and sanitization for all user-controlled data before passing to billboard.js chart options.
Content Security Policy
allImplement strict CSP headers to prevent execution of inline scripts and restrict script sources.
Content-Security-Policy: script-src 'self' https://trusted.cdn.com;
🧯 If You Can't Patch
- Implement strict input validation and sanitization for all chart data inputs
- Deploy web application firewall with XSS protection rules
🔍 How to Verify
Check if Vulnerable:
Check package.json or node_modules for billboard.js version. If version is below 3.18.0, the application is vulnerable.Check Version:
npm list billboard.js | grep billboard.jsVerify Fix Applied:
Confirm billboard.js version is 3.18.0 or higher in package.json and verify no XSS occurs when testing with malicious chart data.📡 Detection & Monitoring
Log Indicators:
- Unusual JavaScript execution in chart contexts
- Suspicious chart option parameters containing script tags
Network Indicators:
- Unexpected external script loads from chart interactions
- Suspicious data payloads to chart rendering endpoints
SIEM Query:
source="web_logs" AND (uri="/chart" OR uri="/data") AND (message="<script>" OR message="javascript:")