CVE-2026-66431Network attack vectorHinoki check available

Unauthenticated order payment bypass via generic nonces

Published Aug 13, 2026 · Updated Aug 13, 2026

Missing authorization in Bitcoin Lightning Payment Gateway for WooCommerce 1.0.7 and earlier allows remote attackers to bypass order payment. The plugin reused generic WordPress nonces across its confirm, check, mark_paid, and save_ndebit AJAX handlers instead of binding authorization to an order. No account or user interaction is required; a forged request can mark an order paid without a valid payment, while no confidentiality or availability impact is reported.

CVSS severity7.5
High
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Missing authorization in Bitcoin Lightning Payment Gateway for WooCommerce 1.0.7 and earlier allows remote attackers to bypass order payment. The plugin reused generic WordPress nonces across its confirm, check, mark_paid, and save_ndebit AJAX handlers instead of binding authorization to an order. No account or user interaction is required; a forged request can mark an order paid without a valid payment, while no confidentiality or availability impact is reported.

The record

CVE
CVE-2026-66431
Published
Aug 13, 2026
Updated
Aug 13, 2026
Vendor
WoompaLoompa
Product
Bitcoin Lightning Payment Gateway for WooCommerce (via CLINK)
Classifications
CWE-862, CAPEC-180, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a <=1.0.7 changes=[{"at":"1.0.8","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WoompaLoompa · Bitcoin Lightning Payment Gateway for WooCommerce (via CLINK)version=n/a <=1.0.7 changes=[{"at":"1.0.8","status":"unaffected"}]

Published CVSS scores

7.5PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
CAPEC-180Exploiting Incorrectly Configured Access Control Security Levels
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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