CVE-2021-4337: Xforwoocommerce Add Product Tabs

High severity, CVSS 8.8. EPSS: 1.3% chance of exploitation in the next 30 days.

Sixteen XforWooCommerce Add-On Plugins for WordPress are vulnerable to authorization bypass due to a missing capability check on the wp_ajax_svx_ajax_factory function in various versions listed below. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to read, edit, or delete WordPress settings, plugin settings, and to arbitrarily list all users on a WordPress website. The plugins impacted are: Product Filter for WooCommerce < 8.2.0, Improved Product Options for WooCommerce < 5.3.0, Improved Sale Badges for WooCommerce < 4.4.0, Share, Print and PDF Products for WooCommerce < 2.8.0, Product Loops for WooCommerce < 1.7.0, XforWooCommerce < 1.7.0, Package Quantity Discount < 1.2.0, Price Commander for WooCommerce < 1.3.0, Comment and Review Spam Control for WooCommerce < 1.5.0, Add Product Tabs for WooCommerce < 1.5.0, Autopilot SEO for WooCommerce < 1.6.0, Floating Cart < 1.3.0, Live Search for WooCommerce < 2.1.0, Bulk Add to Cart for WooCommerce < 1.3.0, Live Product Editor for WooCommerce < 4.7.0, and Warranties and Returns for WooCommerce < 5.3.0.

Affected products

• Xforwoocommerce Add Product Tabs: before 1.5.0 (fixed in 1.5.0)
• Xforwoocommerce Autopilot Seo: before 1.6.0 (fixed in 1.6.0)
• Xforwoocommerce Bulk Add To Cart: before 1.3.0 (fixed in 1.3.0)
• Xforwoocommerce Comment And Review Spam Control: before 1.5.0 (fixed in 1.5.0)
• Xforwoocommerce Floating Cart: before 1.3.0 (fixed in 1.3.0)
• Xforwoocommerce Improved Product Options: before 5.3.0 (fixed in 5.3.0)
• Xforwoocommerce Improved Sale Badges: before 4.4.0 (fixed in 4.4.0)
• Xforwoocommerce Live Product Editor: before 4.7.0 (fixed in 4.7.0)
• Xforwoocommerce Live Search: before 2.1.0 (fixed in 2.1.0)
• Xforwoocommerce Package Quantity: before 1.2.0 (fixed in 1.2.0)
• Xforwoocommerce Price Commander: before 1.3.0 (fixed in 1.3.0)
• Xforwoocommerce Product Filter: before 8.2.0 (fixed in 8.2.0)
• Xforwoocommerce Product Loops: before 1.7.0 (fixed in 1.7.0)
• Xforwoocommerce Share, Print And PDF Products: before 2.8.0 (fixed in 2.8.0)
• Xforwoocommerce Warranties And Returns: before 5.3.0 (fixed in 5.3.0)
• Xforwoocommerce Xforwoocommerce: before 1.7.0 (fixed in 1.7.0)

Published 2023-06-07. Last modified 2026-06-17.