CVE-2026-81740 — Paytm Payment Gateway < 2.8.9 - Unauthenticated Order Status Manipulation via Payment Callback

CVE-2026-81740

Paytm Payment Gateway < 2.8.9 - Unauthenticated Order Status Manipulation via Payment Callback PUBLISHED

Description (CNA)

The Paytm Payment Gateway WordPress plugin before 2.8.9 does not verify that payment callbacks genuinely originate from the payment provider when its secret key has not been configured, which is its state immediately after activation, allowing unauthenticated attackers to change the status of arbitrary orders, including marking unpaid orders as paid and reducing stock.

Affected (CNA)

Vendor / product	Versions
Unknown / Paytm Payment Gateway	affected 0 before 2.8.9

CWE

No CWE identifiers supplied.

References

https://wpscan.com/vulnerability/13767875-5010-494a-b3ed-133d58b8ecea/

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.