How to fix vulnerable component jquery on Webflow

Steps for Webflow

1. In the Webflow Designer, open Project Settings (gear icon) → Custom Code tab.
2. Inspect the 'Head Code' and 'Footer Code' sections for any <script> tags that load jQuery — update any found to 'https://code.jquery.com/jquery-3.7.1.min.js'.
3. Also open each Page's settings (Pages panel → page gear icon → Custom Code) and repeat the check for page-level head/footer code.
4. Webflow itself does not bundle jQuery in its core output unless you add it manually, so the risk is limited to custom code you or a developer added.
5. If you use Webflow Apps or embedded third-party widgets that inject jQuery, contact those vendors for updates.
6. Publish your site and use DevTools → Network to verify only the updated jQuery version loads.

What is vulnerable component jquery?

jQuery is a JavaScript library that most websites load to make interactive features easier to build. Like any software, older versions of jQuery contain security bugs that have been discovered and publicly documented — these are called CVEs (Common Vulnerabilities and Exposures). When your store loads an outdated jQuery version, it is shipping known security holes directly to every visitor's browser. The fix is simply to replace the old file with a current, patched version.

Outdated jQuery versions (especially anything below 3.5.0) contain confirmed XSS vulnerabilities that allow attackers to inject malicious scripts into your pages — stealing customer payment data, session cookies, or redirecting shoppers to phishing sites. This directly endangers customer trust, can result in PCI-DSS compliance failures, and may expose you to legal liability under GDPR or CCPA if customer data is compromised. Google's Safe Browsing also flags sites that serve known malicious scripts, which can trigger browser security warnings that wipe out organic traffic overnight. OWASP lists Vulnerable and Outdated Components as #6 in its Top Ten most critical web application security risks precisely because these attacks are automated, common, and easy for criminals to run at scale.

See the complete Vulnerable component jquery guide for every platform and the full background.