CVE Catalog

CVE-2026-89411

MediumCVSS 5.3
Published: Updated: Translated: NVD NIST

Summary

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. This allows unauthenticated users to mark an arbitrary pending order as paid by confirming a smaller payment of their own against it.

Risk Assessment

An unauthenticated attacker can pay for an expensive order with a smaller amount, leading to financial losses. The vulnerability requires no authentication and can be easily automated.

Recommendation

Update the Paymattic plugin to version 4.6.26 or later. Verify payment-to-order assignment correctness in existing transactions.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS