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CVE-2026-103329— Super Payments < 1.43.1 - Unauthenticated Payment Confirmation Forgery via Webhook Signature

Quick assessment

Affected
Unknown Super Payments
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Super Payments WordPress 插件 1.43.1 版本之前，该插件未能正确验证传入的支付 Webhook 通知的真实性。由于用于验证签名的密钥默认为空，未经身份验证的攻击者可以伪造有效的签名，从而无需实际付款即可将任意 WooCommerce 订单标记为已支付。

CVSS 5.3 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-103329

Vulnerability Information
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Vulnerability Title
Super Payments < 1.43.1 - Unauthenticated Payment Confirmation Forgery via Webhook Signature
Source: CVE Program / CVE List V5
Vulnerability Description
The Super Payments WordPress plugin before 1.43.1 does not properly verify the authenticity of incoming payment webhook notifications, as the signing key used to validate their signature is empty by default, allowing unauthenticated attackers to forge a valid signature and mark arbitrary WooCommerce orders as paid without payment.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Unknown Super Payments 0 ~ 1.43.1 -

II. Public POCs for CVE-2026-103329

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III. Intelligence Information for CVE-2026-103329

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Other References for CVE-2026-103329 (1)

Same Patch Batch · Unknown · 2026-10-09 · 16 CVEs total

CVE-2026-89235 6.8 MEDIUM Testimonials by BestWebSoft 1.0.5 - 1.0.8 - Unauthenticated SQLi via 'offset' Parameter
CVE-2026-86851 6.5 MEDIUM Livees Checkout 6.8 - 7.0.2 - Unauthenticated Order Status Change, Order Note Injection &
CVE-2026-87846 5.3 MEDIUM Shipping for Nova Poshta 1.18.7 - 1.19.8 - Unauthenticated Order Shipment Record Deletion
CVE-2026-84220 4.8 MEDIUM Kirki < 6.3.2 - Unauthenticated Arbitrary Shortcode Execution via Comments Collection
CVE-2026-85348 4.3 MEDIUM GDPR Data Request Form 1.5 - 1.7.1 - DPO Email Update via CSRF
CVE-2026-84224 4.1 MEDIUM Kirki < 6.3.2 - Editor+ Blind SSRF via Remote Template URL
CVE-2026-106095 Code Snippets < 3.10.0 - Admin+ Network-Scoped Snippet Activation and Deactivation via upd
CVE-2026-106097 Code Snippets < 3.10.0 - Admin+ SQLi in Migration Importers Leading to Network-Wide Creden
CVE-2026-93548 FooSales < 1.43.3 - Subscriber+ Privilege Escalation via User Impersonation
CVE-2026-87841 UnitechPay <= 1.0.6.3 - Unauthenticated Order Payment Bypass via Unsigned Webhook
CVE-2026-92990 SendPress <= 1.26.1.20 - Unauthenticated Newsletter Sending Log Disclosure via Hardcoded T
CVE-2026-88931 Social Web Suite <= 4.1.12 - Unauthenticated Arbitrary Plugin Settings Update
CVE-2026-86850 SKU Error Fixer for WooCommerce <= 1.0 - Unauthenticated Orphaned Product Variation Deleti
CVE-2025-15700 AWP Classifieds < 4.4.9 - Admin+ Arbitrary File Upload via ZIP Import
CVE-2026-92989 SendPress Newsletters <= 1.26.1.20 - Subscriber+ Mailing List Sync and Newsletter Queueing

IV. Related Vulnerabilities

Same vendor: Unknown

V. Comments for CVE-2026-103329

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