{"id":"CVE-2026-2996","aliases":["EUVD-2026-64300","GHSA-9gvr-wm3r-qgg4"],"status":"published","title":"Advanced Product Fields (Product Addons) for WooCommerce \u003c= 1.6.21 - Unauthenticated Improper Input Validation to Price Bypass via Add-to-Cart POST Request","description":"The Advanced Product Fields (Product Addons) for WooCommerce plugin for WordPress is vulnerable to Improper Input Validation in all versions up to, and including, 1.6.21. This is due to a logic flaw in the 'validate_cart_data' function. This makes it possible for unauthenticated attackers to bypass required paid addons and complete purchases at the base product price only, effectively stealing products by paying a fraction of the intended total. The vulnerability was partially patched in version 1.6.19.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00525,"percentile":0.44811,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2026-08-22T13:27:14Z","modified":"2026-10-12T16:10:00Z","products":[{"vendor":"maartenbelmans","product":"advanced product fields (product addons) for woocommerce"},{"vendor":"wombat plugins","product":"advanced product fields (product addons) for woocommerce"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/5d9c1c3d-6882-4425-8d32-bdb57b4f133d?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/advanced-product-fields-for-woocommerce/trunk/includes/controllers/class-product-controller.php#L130"},{"url":"https://plugins.trac.wordpress.org/changeset/3477476/"},{"url":"https://plugins.trac.wordpress.org/changeset/3483410/"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-2996"},{"url":"https://plugins.trac.wordpress.org/changeset/3477476"},{"url":"https://plugins.trac.wordpress.org/changeset/3483410"},{"url":"https://github.com/advisories/GHSA-9gvr-wm3r-qgg4"}],"sources":{"cve":[{"id":"CVE-2026-2996","title":"Advanced Product Fields (Product Addons) for WooCommerce \u003c= 1.6.21 - Unauthenticated Improper Input Validation to Price Bypass via Add-to-Cart POST Request","description":"The Advanced Product Fields (Product Addons) for WooCommerce plugin for WordPress is vulnerable to Improper Input Validation in all versions up to, and including, 1.6.21. This is due to a logic flaw in the 'validate_cart_data' function. This makes it possible for unauthenticated attackers to bypass required paid addons and complete purchases at the base product price only, effectively stealing products by paying a fraction of the intended total. The vulnerability was partially patched in version 1.6.19.","status":"published","published":"2026-08-22T13:27:14.956Z","modified":"2026-08-24T13:01:22.48Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T13:48:46.911326Z"}],"euvd":[{"id":"EUVD-2026-64300","description":"The Advanced Product Fields (Product Addons) for WooCommerce plugin for WordPress is vulnerable to Improper Input Validation in all versions up to, and including, 1.6.21. This is due to a logic flaw in the 'validate_cart_data' function. This makes it possible for unauthenticated attackers to bypass required paid addons and complete purchases at the base product price only, effectively stealing products by paying a fraction of the intended total. The vulnerability was partially patched in version 1.6.19.","status":"published","published":"2026-08-22T13:27:14Z","modified":"2026-08-24T13:01:22Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T18:01:35.296422Z"}],"ghsa":[{"id":"GHSA-9gvr-wm3r-qgg4","title":"The Advanced Product Fields (Product Addons) for WooCommerce plugin for WordPress is vulnerable...","description":"The Advanced Product Fields (Product Addons) for WooCommerce plugin for WordPress is vulnerable to Improper Input Validation in all versions up to, and including, 1.6.21. This is due to a logic flaw in the 'validate_cart_data' function. This makes it possible for unauthenticated attackers to bypass required paid addons and complete purchases at the base product price only, effectively stealing products by paying a fraction of the intended total. The vulnerability was partially patched in version 1.6.19.","status":"published","published":"2026-08-22T15:31:03Z","modified":"2026-08-22T15:31:11Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T15:10:51.608425Z"}],"nvd":[{"id":"CVE-2026-2996","description":"The Advanced Product Fields (Product Addons) for WooCommerce plugin for WordPress is vulnerable to Improper Input Validation in all versions up to, and including, 1.6.21. This is due to a logic flaw in the 'validate_cart_data' function. This makes it possible for unauthenticated attackers to bypass required paid addons and complete purchases at the base product price only, effectively stealing products by paying a fraction of the intended total. The vulnerability was partially patched in version 1.6.19.","status":"published","published":"2026-08-22T14:16:32.807Z","modified":"2026-10-12T16:10:00.22Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:12:40.665005Z"}]}}