WP Express Checkout < 2.5.0 - Unauthenticated Payment Bypass via wpec_process_empty_payment

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.

Affected scope and exposure questions

The current feed maps Unknown/WP Express Checkout (generic). Check affected ranges and fixed versions before updating.

Recommended response

1. 1Check inventory. Check lockfiles and deployed manifests for Unknown/WP Express Checkout.
2. 2Review the reported fix. Update Unknown/WP Express Checkout to 2.5.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

1. Published upstream

   Sep 9, 2026

   Evidence: source:cvelist:source_dates:source-dates:record

2. Source modified

   Sep 9, 2026

   Evidence: source:cvelist:source_dates:source-dates:record

3. First seen by HOL

   Sep 9, 2026

Sources and claim methodology

• Source referencewpscan.com

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