How to fix vulnerable component jquery on PrestaShop

Steps for PrestaShop

1. In PrestaShop Admin, go to Modules → Module Manager and update all modules to their latest versions — modules frequently bundle their own jQuery.
2. Go to Design → Theme & Logo → check for theme updates. In your theme directory ('themes/[your-theme]/'), search for 'jquery' in .tpl and .js files to find hard-coded inclusions.
3. If jQuery is loaded in 'themes/[your-theme]/templates/_partials/head.tpl' or a layout file, update the version number in the CDN URL or replace the local file.
4. PrestaShop core itself ships jQuery — updating PrestaShop to the latest minor/patch version via the 1-Click Upgrade module will update the core jQuery.
5. After changes, clear the cache via Advanced Parameters → Performance → Clear cache, then verify with DevTools.

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Outdated jQuery versions (especially anything below 3.5.0) contain confirmed XSS vulnerabilities that allow attackers to inject malicious scripts into your pages —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 OWASP lists Vulnerable and Outdated Components as #6 in its Top Ten most critical web application security risks precisely because these attacks are automated, common, and easy for criminals to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