Vulnerable JavaScript Libraries Scanner
Scan your pages for known vulnerable JavaScript libraries and outdated versions.
This check requires a paid subscription to run. You can still view examples and guidance below.
- Detect known vulnerable JS libraries
- Identify risky versions
- Upgrade guidance
"Barrion's security scanning has helped us implement best security practices efficiently, saving us countless hours."
Sarah Chen
Head of Security
"We identified and fixed critical vulnerabilities before our platform launch, saving us from potential data breaches."
Marcus Anderson
CTO
"Barrion gives us peace of mind, knowing we're notified of any security issues. Exactly what our team needed."
Oskar Nilsson
Tech Lead
Scan in three simple steps
Fast, safe, non-intrusive checks with actionable results.
Start scan
Enter your URL, and click the start scan button to begin.
Scan runs
Barrion performs passive, read-only security checks with minimal site impact.
View results
See security findings with prioritized, actionable recommendations.
About this check
We analyze loaded JavaScript libraries against public vulnerability databases to flag known CVEs and suggest safer versions. This helps reduce supply‑chain risk and XSS/RCE vectors introduced by third‑party code.
How to fix common findings
- Pin to a secure, supported version (check release notes)
- Prefer first‑party hosting with SRI over opaque third‑party bundles
- Remove unused libraries and polyfills
Tool-specific questions
Is this check free?
What sources are used?
Why Choose Barrion?
Real-Time Results
Instant security analysis with detailed reports, giving you an immediate security overview
Comprehensive Checks
Multiple best-practice security checks in a single scan, for broad coverage
Actionable and Effective
Clear recommendations for fixes, helping you improve your security quickly and effectively
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