CVE-2026-81809 – The Paytm Payment Gateway WordPress plugin before 2.8.9 does not properly escape data take

The Paytm Payment Gateway WordPress plugin before 2.8.9 does not properly escape data taken from payment callbacks before using it in a SQL statement, and the integrity check on those callbacks can be forged when the gateway is enabled without credentials, allowing unauthenticated users to perform SQL injection attacks.