WordPress Payment Button for PayPal plugin <= 1.2.3.44 - Unauthenticated Payment Price Manipulation vulnerability

Unauthenticated Payment Price Manipulation vulnerability discovered by Muni Nitish Kumar Yaddala in WordPress Plugin Payment Button for PayPal versions = 1.2.3.44...

CVE-2026-16990

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...

CVE-2026-16990 Payment Button for PayPal <= 1.2.3.44 - Unauthenticated Payment Price Manipulation

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...

CVE-2026-16990

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...

EUVD-2026-57175

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...

CVE-2026-16990

The CVE concerns the WordPress plugin “Payment Button for PayPal” (versions up to 1.2.3.44). The root cause is that the plugin does not enforce the merchant-configured price server-side and trusts the amount provided by the client, enabling unauthenticated attackers to create a real PayPal order ...

PT-2026-71054

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...