{"id":"CVE-2026-110590","summary":"Klarna for WooCommerce \u003c= 4.13.3 - Missing Authorization to Unauthenticated Sensitive Information Disclosure via 'order-pay' Endpoint","details":"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.","modified":"2026-10-17T02:48:28.574759768Z","published":"2026-10-16T04:27:03.790Z","database_specific":{"cna_assigner":"Wordfence","cwe_ids":["CWE-862"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110590.json"},"references":[{"type":"WEB","url":"https://github.com/krokedil/klarna-payments-for-woocommerce/compare/4.13.3...f5362605a9901b7f9264cfa3b22fd782a7a3097b"},{"type":"WEB","url":"https://plugins.trac.wordpress.org/browser/klarna-payments-for-woocommerce/tags/4.13.3/classes/class-kp-assets.php#L159"},{"type":"WEB","url":"https://plugins.trac.wordpress.org/browser/klarna-payments-for-woocommerce/tags/4.13.3/classes/class-kp-assets.php#L185"},{"type":"WEB","url":"https://plugins.trac.wordpress.org/browser/klarna-payments-for-woocommerce/tags/4.13.3/classes/class-kp-assets.php#L198"},{"type":"WEB","url":"https://plugins.trac.wordpress.org/browser/klarna-payments-for-woocommerce/tags/4.13.3/classes/class-kp-assets.php#L204"},{"type":"WEB","url":"https://plugins.trac.wordpress.org/changeset/3740915/klarna-payments-for-woocommerce/trunk/classes/class-kp-assets.php"},{"type":"WEB","url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/c3abb96e-6ee2-4992-a122-9f661da9a4d6?source=cve"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110590.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-110590"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/krokedil/klarna-payments-for-woocommerce","events":[{"introduced":"0"},{"last_affected":"0d6c8537e224d077da2c9b85736448423cc02baf"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"last_affected":"4.13.3"}]}}],"versions":["4.13.3","4.13.2","4.13.1","4.13.0","4.12.2","4.12.1","4.12.0","4.11.0","4.10.7","4.10.6","4.10.5","4.10.4","4.10.3","4.10.2","4.10.1","4.10.0","4.9.0","4.8.0","4.7.1","4.7.0","4.6.4","4.6.3","4.6.2","4.6.1","4.6.0","4.5.0","4.4.1","4.4.0","4.3.1","4.3.0","4.2.0","4.1.4","4.1.3","4.1.2","4.1.1","4.1.0","4.0.3","4.0.2","4.0.1","4.0.0","3.9.2","3.9.1","3.9.0","3.8.3","3.8.2","3.8.1","3.8.0","3.7.4","3.7.3","3.7.2","3.7.1","3.7.0","3.7.0-beta.1","3.6.2","3.6.1","3.6.0","3.5.4","3.5.3","3.5.2","3.5.1","3.5.0","3.4.2","3.4.1","3.4.0","3.3.1","3.3.0","3.2.4","3.2.3","3.2.2","3.2.1","3.2.0","3.1.3","3.1.2","3.1.1","3.1.0","3.0.7","3.0.6","3.0.5","3.0.4","3.0.3","3.0.2","3.0.1","3.0.0","3.0.0-beta.1","2.12.1","2.12.0","2.11.5","2.11.4","2.11.3","2.11.2","2.11.1","2.11.0","2.10.0","2.9.1","2.9.0","2.8.1","2.8.0","2.7.1","2.7.0","2.6.1","2.6.0","2.5.1","2.5.0","2.4.4","2.4.3","2.4.2","2.4.1","2.4.0","2.3.2","2.3.1","2.3.0","2.2.0","2.1.4","2.1.3","2.1.2","2.1.1","2.1.0","2.0.9","2.0.8","2.0.7","2.0.6","2.0.5","2.0.4","2.0.3","2.0.2","2.0.1","2.0.0","1.9.2","1.9.1","1.9.0","1.8.4","1.8.3","1.8.2","1.8.1","1.8.0","1.7.0","1.6.5","1.6.4","1.6.3","1.6.2","1.6.1","1.6.0","1.5.3","1.5.2","1.5.0","v1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-110590.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}