PatchSiren

WP Express Checkout CVE debriefs

These pages are published after PatchSiren validates generated defensive summaries against stored public CVE and source evidence.

MEDIUM WP Express Checkout CVE published 2026-09-02

CVE-2026-83533

The WP Express Checkout WordPress plugin before 2.4.9 does not verify server-side that a payment was actually completed before marking an order as paid, allowing unauthenticated users to forge a completed order without paying. This vulnerability has significant implications for e-commerce sites using the plugin, as it could lead to financial losses. The vulnerability has a CVSS score of 5.3 and is classif [truncated]