{"id":"CVE-2026-110590","published":"2026-10-16T05:17:29.973","lastModified":"2026-10-16T15:17:11.547","description":"The Klarna for WooCommerce plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.13.3 This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to access any order's secret order_key and full billing and shipping PII — including first name, last name, email address, phone number, street address, postcode, city, region, and country — emitted inline as the klarna_payments_params JavaScript variable, enabling full store-wide order enumeration. Because WooCommerce order IDs are sequential integers and no order_key or authenticated session is required, every order in the store can be trivially enumerated with sequential GET requests to the order-pay endpoint.","cvssScore":7.5,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","cwes":["CWE-862"],"vendors":[],"products":[],"references":[{"url":"https://github.com/krokedil/klarna-payments-for-woocommerce/compare/4.13.3...f5362605a9901b7f9264cfa3b22fd782a7a3097b","tags":[]},{"url":"https://plugins.trac.wordpress.org/browser/klarna-payments-for-woocommerce/tags/4.13.3/classes/class-kp-assets.php#L159","tags":[]},{"url":"https://plugins.trac.wordpress.org/browser/klarna-payments-for-woocommerce/tags/4.13.3/classes/class-kp-assets.php#L185","tags":[]},{"url":"https://plugins.trac.wordpress.org/browser/klarna-payments-for-woocommerce/tags/4.13.3/classes/class-kp-assets.php#L198","tags":[]},{"url":"https://plugins.trac.wordpress.org/browser/klarna-payments-for-woocommerce/tags/4.13.3/classes/class-kp-assets.php#L204","tags":[]},{"url":"https://plugins.trac.wordpress.org/changeset/3740915/klarna-payments-for-woocommerce/trunk/classes/class-kp-assets.php","tags":[]},{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/c3abb96e-6ee2-4992-a122-9f661da9a4d6?source=cve","tags":[]}],"exploitRefs":[{"url":"https://github.com/krokedil/klarna-payments-for-woocommerce/compare/4.13.3...f5362605a9901b7f9264cfa3b22fd782a7a3097b","tags":[]}],"hasPoc":true,"ai":null}