5.3
Medium
CVE-2026-16990 The Payment Button for PayPal WordPress plugin through 1.2.3.44 does not enforce the merchant-configured price…
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Payment Button for PayPal 1.2 | earliest → 1.2.3.44 | No fix stated |