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2 vulnerabilities by klarnaplugin
CVE-2026-110590 (GCVE-0-2026-110590)
Vulnerability from nvd – Published: 2026-10-16 04:27 – Updated: 2026-10-16 15:09
VLAI
EPSS
VEX
Title
Klarna for WooCommerce <= 4.13.3 - Missing Authorization to Unauthenticated Sensitive Information Disclosure via 'order-pay' Endpoint
Summary
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.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 14:57 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
References
7 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| klarnaplugin | Klarna for WooCommerce |
Affected:
0 , ≤ 4.13.3
(semver)
|
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"containers": {
"adp": [
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"other": {
"content": {
"id": "CVE-2026-110590",
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"timestamp": "2026-10-16T14:57:42.888860Z",
"version": "2.0.3"
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"providerMetadata": {
"dateUpdated": "2026-10-16T15:09:39.428Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
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"product": "Klarna for WooCommerce",
"vendor": "klarnaplugin",
"versions": [
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"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Kuba"
}
],
"descriptions": [
{
"lang": "en",
"value": "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\u0027s secret order_key and full billing and shipping PII \u2014 including first name, last name, email address, phone number, street address, postcode, city, region, and country \u2014 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."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.5,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-862",
"description": "CWE-862 Missing Authorization",
"lang": "en",
"type": "CWE"
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"providerMetadata": {
"dateUpdated": "2026-10-16T04:27:03.790Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/c3abb96e-6ee2-4992-a122-9f661da9a4d6?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/klarna-payments-for-woocommerce/tags/4.13.3/classes/class-kp-assets.php#L185"
},
{
"url": "https://plugins.trac.wordpress.org/browser/klarna-payments-for-woocommerce/tags/4.13.3/classes/class-kp-assets.php#L198"
},
{
"url": "https://plugins.trac.wordpress.org/browser/klarna-payments-for-woocommerce/tags/4.13.3/classes/class-kp-assets.php#L204"
},
{
"url": "https://plugins.trac.wordpress.org/browser/klarna-payments-for-woocommerce/tags/4.13.3/classes/class-kp-assets.php#L159"
},
{
"url": "https://github.com/krokedil/klarna-payments-for-woocommerce/compare/4.13.3...f5362605a9901b7f9264cfa3b22fd782a7a3097b"
},
{
"url": "https://plugins.trac.wordpress.org/changeset/3740915/klarna-payments-for-woocommerce/trunk/classes/class-kp-assets.php"
}
],
"timeline": [
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"time": "2026-10-14T15:00:10.000Z",
"value": "Vendor Notified"
},
{
"lang": "en",
"time": "2026-10-15T15:50:36.000Z",
"value": "Disclosed"
}
],
"title": "Klarna for WooCommerce \u003c= 4.13.3 - Missing Authorization to Unauthenticated Sensitive Information Disclosure via \u0027order-pay\u0027 Endpoint"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2026-110590",
"datePublished": "2026-10-16T04:27:03.790Z",
"dateReserved": "2026-10-14T13:06:50.647Z",
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"state": "PUBLISHED"
},
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CVE-2026-110590 (GCVE-0-2026-110590)
Vulnerability from cvelistv5 – Published: 2026-10-16 04:27 – Updated: 2026-10-16 15:09
VLAI
EPSS
VEX
Title
Klarna for WooCommerce <= 4.13.3 - Missing Authorization to Unauthenticated Sensitive Information Disclosure via 'order-pay' Endpoint
Summary
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.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 14:57 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
References
7 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| klarnaplugin | Klarna for WooCommerce |
Affected:
0 , ≤ 4.13.3
(semver)
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-110590",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-16T14:57:42.888860Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-16T15:09:39.428Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Klarna for WooCommerce",
"vendor": "klarnaplugin",
"versions": [
{
"lessThanOrEqual": "4.13.3",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Kuba"
}
],
"descriptions": [
{
"lang": "en",
"value": "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\u0027s secret order_key and full billing and shipping PII \u2014 including first name, last name, email address, phone number, street address, postcode, city, region, and country \u2014 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."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.5,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
}
}
],
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"descriptions": [
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"cweId": "CWE-862",
"description": "CWE-862 Missing Authorization",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-16T04:27:03.790Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/c3abb96e-6ee2-4992-a122-9f661da9a4d6?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/klarna-payments-for-woocommerce/tags/4.13.3/classes/class-kp-assets.php#L185"
},
{
"url": "https://plugins.trac.wordpress.org/browser/klarna-payments-for-woocommerce/tags/4.13.3/classes/class-kp-assets.php#L198"
},
{
"url": "https://plugins.trac.wordpress.org/browser/klarna-payments-for-woocommerce/tags/4.13.3/classes/class-kp-assets.php#L204"
},
{
"url": "https://plugins.trac.wordpress.org/browser/klarna-payments-for-woocommerce/tags/4.13.3/classes/class-kp-assets.php#L159"
},
{
"url": "https://github.com/krokedil/klarna-payments-for-woocommerce/compare/4.13.3...f5362605a9901b7f9264cfa3b22fd782a7a3097b"
},
{
"url": "https://plugins.trac.wordpress.org/changeset/3740915/klarna-payments-for-woocommerce/trunk/classes/class-kp-assets.php"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-10-14T15:00:10.000Z",
"value": "Vendor Notified"
},
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"time": "2026-10-15T15:50:36.000Z",
"value": "Disclosed"
}
],
"title": "Klarna for WooCommerce \u003c= 4.13.3 - Missing Authorization to Unauthenticated Sensitive Information Disclosure via \u0027order-pay\u0027 Endpoint"
}
},
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"assignerShortName": "Wordfence",
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"datePublished": "2026-10-16T04:27:03.790Z",
"dateReserved": "2026-10-14T13:06:50.647Z",
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},
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