Add to cart fails with security check error
Adding a product to the cart fails with a nonce or security check error, even on products with no options set.
Tier II · Emerging Problems that are still building up.
3 public reports · first reported 6 June 2024 · last reported 27 February 2025
What's going wrong
Site owners report that clicking Add to Cart shows a message saying the security check failed or nonce verification failed, sometimes only after other plugins were updated.
AI-assisted: written with the help of AI from the reports. The idea report has the full summary.
In the idea report
- The full summary.
- The products the 3 reports are about, and how many came each month.
- Related problems.
No business has been found with this problem yet, so the report has no contacts. All sales are final — no refunds. Pricing.