How to fix cms version on BigCommerce
Update your CMS and ecommerce platform to the latest stable version immediately to close known security vulnerabilities and maintain vendor support.
Steps for BigCommerce
- BigCommerce core is SaaS and updated automatically — no manual core upgrades required.
- Theme updates: In BigCommerce admin go to Storefront > My Themes. If a newer version of your theme is available, a notification appears. Click 'Make a copy' first (to preserve your current settings), then apply the update.
- For Stencil CLI developers: run 'stencil pull' to fetch the latest framework updates, merge carefully, then run 'stencil push' to deploy.
- Check Apps > My Apps for any apps flagged as having updates, and update them individually.
- Monitor the BigCommerce status page and release notes (bigcommerce.com/release-notes) for upcoming changes that may affect custom integrations.
What is cms version?
Every website is built on a content management system (CMS) — software like WordPress, WooCommerce, Shopify, Wix, or Magento that powers your store behind the scenes. Just like your phone's operating system, this software releases regular updates that fix bugs, patch security holes, and add new features. Running an outdated version means your store is using software the vendor no longer actively protects — and that attackers actively target. A "cms_version" finding means your platform or a core component of it has been detected as out-of-date or approaching end-of-life.
Outdated CMS versions are the single most common entry point for store hacks: attackers maintain public databases of known vulnerabilities tied to specific version numbers, and they run automated bots that scan millions of sites daily looking for easy targets. A successful breach can result in stolen customer payment data (triggering PCI-DSS fines and card-network penalties), customer account takeovers, malware injected into your storefront that drives customers away, and Google Safe Browsing warnings that tank your organic traffic overnight. Beyond security, running end-of-life software means you stop receiving performance improvements and compatibility updates — slowing your site and hurting your search rankings. Many payment processors and hosting providers will also suspend service for stores running critically outdated platforms.
See the complete Cms version guide for every platform and the full background.
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