PT-2026-84751 · WordPress · Wp Express Checkout

·

CVE-2026-83533

·

Published

2026-09-02

·

Updated

2026-09-02

CVSS v3.1

5.3

Medium

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Name of the Vulnerable Software and Affected Versions WP Express Checkout versions prior to 2.4.9
Description Unauthenticated users can forge a completed order without making a payment because the software fails to verify server-side that a payment was actually completed before marking an order as paid. This issue occurs within the wpec process payment() function.
Recommendations Update WP Express Checkout to version 2.4.9 or later.

Exploit

Fix

Insufficient Verification of Data Authenticity

Found an issue in the description? Have something to add? Feel free to write us 👾

Weakness Enumeration

Related Identifiers

CVE-2026-83533

Affected Products

Wp Express Checkout