CVE-2026-16990

Medium

Open

TLP:CLEAR

Payment Button for PayPal <= 1.2.3.44 - Unauthenticated Payment Price Manipulation

NVD CVE.org

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Description

The Payment Button for PayPal WordPress plugin through 1.2.3.44 does not enforce the merchant-configured price server-side and trusts a client-supplied payment amount, allowing unauthenticated attackers to create a real PayPal order against the merchant for an arbitrary lower amount.

Details

CVSS Score: 5.3
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Confidence: 90%
Published: Aug 12, 2026
Last Modified: Aug 12, 2026

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