CVE-2026-83537
WP Express Checkout < 2.5.0 - Unauthenticated Payment Bypass via wpec_process_empty_payment
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
The WP Express Checkout WordPress plugin before 2.5.0 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.
| Vendor | unknown |
| Product | wp express checkout |
| Published | Sep 9, 2026 |
| Last Updated | Sep 9, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Unknown / WP Express Checkout
0 < 2.5.0
References
Credits
ryan zegar WPScan