Medium · CVSS 5.3CVE-2026-103329

Super Payments < 1.43.1 - Unauthenticated Payment Confirmation Forgery via Webhook SignatureCVE-2026-103329

Answer in brief

CVE-2026-103329 records a Medium severity (CVSS 5.3) vulnerability in Super Payments < 1.43.1 - Unauthenticated Payment Confirmation Forgery via Webhook Signature. The current sources do not mark it as known exploited. The current feed maps Unknown/Super Payments (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 9, 2026Updated Oct 9, 2026Source checked Oct 9, 2026First seen by HOL Oct 9, 2026Material review Oct 9, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 5.3
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Unknown/Super Payments (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Unknown/Super Paymentsgeneric	>=0 <1.43.1	1.43.1

Recommended response

Check inventory. Check lockfiles and deployed manifests for Unknown/Super Payments.
Review the reported fix. Update Unknown/Super Payments to 1.43.1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Oct 9, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 9, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 9, 2026

Sources and claim methodology

Source referencewpscan.com

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.