SellKit – Funnel builder and checkout optimizer for WooCommerce to sell more, faster <= 2.7.0 - Unauthenticated Price Manipulation via 'sellkit_product_prices' Parameter
- ID
- WPSEC-2026-0485
- Plugin
- SellKit – Funnel builder and checkout optimizer for WooCommerce to sell more, faster (sellkit)
- Affected
- from 2.3.5 before 2.8.0
- Remediation
- Update to 2.8.0 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Weakness
- CWE-472
- Usage
- Plugin Low · Affected versions Low among sites WPSec scans, 2026-10-06
- Attack surface
- SellKit – Funnel builder and checkout optimizer for WooCommerce to sell more, faster on WPSec AttackSurface
- Fix released
- Published
Description
The SellKit plugin for WordPress is vulnerable to Price Manipulation via the 'sellkit_product_prices' parameter in versions 2.3.5 up to, and including, 2.7.0. This is due to the cart price calculation hook (in both the Elementor and block editor checkout implementations) trusting a client-supplied JSON map of product IDs to prices, intended to carry upsell prices back from a hidden checkout form field, and applying those values to matching cart items with set_price() when the order is placed. This makes it possible for unauthenticated attackers to purchase products at arbitrary prices, including zero, by adding the parameter to a checkout submission.
References
- https://wpsec.com/vuln/WPSEC-2026-0485/
- https://plugins.svn.wordpress.org/sellkit/tags/2.8.0/
- https://wordpress.org/plugins/sellkit/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
This advisory as JSON or Markdown · All advisories: JSON, RSS