CVE-2026-121633 · Package
NO FIX YET · SEE WHAT TO DO
The Order Tracking WordPress plugin before 3.6.0 does not check that a PayPal payment notification was sent to the merchant's account or that the amount matches the order total. An unauthenticated attacker can mark any order as paid by sending a trivial payment to their own PayPal account.
first public Nov 6, 2026 · 1 source
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Merchants running the Order Tracking WordPress plugin before 3.6.0 that accept PayPal payments. The flaw sits in the payment notification handling, so any site using PayPal with this plugin is exposed to unauthenticated order tampering. Sites without this plugin or on 3.6.0 or later are not affected.
Not affected if paypal-not-used, plugin-version-3.6.0-or-later
Who cares e-commerce, paypal, woocommerce, wordpress
3.6.0 are affected.3.6.0 or later.The Order Tracking WordPress plugin before 3.6.0 does not verify that a PayPal payment notification was sent to the merchant's account, or that its amount matches the order total, before marking an order as paid, which could allow unauthenticated attackers to mark arbitrary orders as paid using a trivial payment to their own PayPal account.
This page as .md · .json · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
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