CVE-2026-81809: Unknown Paytm Payment Gateway

High severity, CVSS 7.5. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Unknown Paytm Payment Gateway: before 2.8.9 (fixed in 2.8.9)

Published 2026-10-01. Last modified 2026-10-01.