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The vulnerability in billboard.js stems from inadequate input sanitization during the chart option binding process. When user-controlled data is passed into chart configuration options, such as s, labels, or tooltips, the library fails to properly escape or validate this input. This allows attackers to inject malicious JavaScript payloads that are executed when the chart is rendered in a victim’s browser. The attack exploits the dynamic nature of chart options, where unsanitized input is directly bound to DOM elements without context-aware encoding. Versions prior to 3.18.0 are affected because they do not strip or neutralize dangerous scripts within option values. An attacker can craft a chart option with a script payload, which then runs in the context of the web page, leading to cross-site scripting. This can occur through various vectors, including data points from external APIs or user-generated content. The vulnerability leverages the library’s internal binding mechanisms that treat option values as raw HTML or JavaScript in certain contexts. This flaw enables remote code execution, compromising user sessions and allowing unauthorized actions. The issue is critical in applications that integrate untrusted data into visualizations without proper validation. Mitigation requires updating to version 3.18.0, which implements robust sanitization for all option bindings.
Platform: billboard.js
Version: before 3.18.0
Vulnerability: XSS option binding
Severity: High
date: Jan 28, 2026
Prediction: Jan 28 2026
What Undercode Say:
Analytics:
npm list billboard.js
grep version node_modules/billboard.js/package.json
bb.generate({ {text: maliciousInput}});
How Exploit:
Inject script via chart options like or labels. Example payload: <script>alert('XSS')</script>.
Protection from this CVE:
Update to version 3.18.0. Sanitize all user inputs. Use Content Security Policy.
Impact:
Session hijacking, data theft, unauthorized actions.
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Sources:
Reported By: github.com
Extra Source Hub:
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