Vulnerability · Published Oct 2, 2026 · Assigned by WPScan

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

Medium 5.3

In plain English

A medium-severity improper authentication in Paytm Payment Gateway from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)0.2%top 92.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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 products (as reported)

Vendor	Product	Versions
Unknown	Paytm Payment Gateway	0 – before 2.8.9

Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References

https://wpscan.com/vulnerability/13767875-5010-494a-b3ed-133d58b8ecea/ exploit, vdb-entry, technical-description