[ CVE-2026-89411 · Published 28 Sep 2026 ]

Vulnerability in Unknown Paymattic

CVSS 5.3 EPSS <1%No fix listed yet

[ Description ]Official description

The Paymattic WordPress plugin from 4.6.20 before 4.6.26 does not verify that a confirmed Stripe payment belongs to the order it is applied to, allowing unauthenticated users to mark an arbitrary pending order as paid by confirming a smaller payment of their own against it.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.