Unknown severity · Source severity not reportedCVE-2026-103299

nexi Alpha Bank for WooCommerce <= 2.2.0 - Unauthenticated Payment Confirmation Forgery via Empty Shared SecretCVE-2026-103299

Answer in brief

CVE-2026-103299 records a Unknown severity vulnerability in nexi Alpha Bank for WooCommerce <= 2.2.0 - Unauthenticated Payment Confirmation Forgery via Empty Shared Secret. The current sources do not mark it as known exploited. The current feed maps Unknown/Payment Gateway (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 26, 2026Updated Oct 26, 2026Source checked Oct 26, 2026First seen by HOL Oct 26, 2026Material review Oct 26, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. 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/Payment Gateway (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Unknown/Payment Gatewaygeneric	>=0 <=2.2.0	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Unknown/Payment Gateway.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Oct 26, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 26, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 26, 2026

Sources and claim methodology

Source referencewpscan.com

Upstream source description

The Payment Gateway WordPress plugin through 2.2.0 does not ensure a shared secret is configured before using it to authenticate the bank's payment-notification callback, allowing unauthenticated attackers to forge a valid notification and mark any WooCommerce order as paid on installs where the secret has not been set, and the same callback lets them move any pending order to a failed state whether or not the secret is configured.

Quoted source text, attributed separately from HOL analysis.