How to fix vulnerable component jquery on Headless / Custom (I build in code)

Steps for Headless / Custom (I build in code)

1. Open your project's package.json (if using npm/yarn) and update the jQuery version: run 'npm install jquery@latest' or 'yarn add jquery@latest'.
2. If jQuery is loaded via a CDN <script> tag in your HTML template, update the URL to 'https://code.jquery.com/jquery-3.7.1.min.js' and update the integrity hash from https://code.jquery.com/ (SRI hash provided on the jQuery CDN page).
3. Search your entire codebase for 'jquery' to find any other references (e.g. in Webpack config, Rollup, Vite, or Browserify bundler config) and update them.
4. Run your build process and deploy; use DevTools → Network to confirm only the updated version loads.
5. Add jQuery to your dependency update schedule (e.g. Dependabot, Renovate) to be notified of future releases automatically.

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Outdated jQuery versions (especially anything below 3.5.0) contain confirmed XSS vulnerabilities that allow attackers to inject malicious scripts into your pages —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 OWASP lists Vulnerable and Outdated Components as #6 in its Top Ten most critical web application security risks precisely because these attacks are automated, common, and easy for criminals to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.