CVE-2026-81740
Received Received - Intake

Unauthenticated Order Status Change in Paytm Payment Gateway WordPress Plugin

Publication date: 2026-10-02

Last updated on: 2026-10-02

Assigner: WPScan

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.

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Meta Information

Published
2026-10-02
Last Modified
2026-10-02
Generated
2026-10-02
AI Q&A
2026-10-02
EPSS Evaluated
N/A
NVD
CVE-2026-81740
EUVD
EUVD-2026-91201

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
paytm payment_gateway to 2.8.9 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability affects the Paytm Payment Gateway WordPress plugin before version 2.8.9. When the plugin's secret key is not configured after activation, it fails to verify if payment callbacks are legitimate. This allows unauthenticated attackers to change order statuses, such as marking unpaid orders as paid or reducing stock levels.

Detection Guidance

Check if the Paytm Payment Gateway WordPress plugin version is below 2.8.9. Use commands like 'wp plugin list' in WordPress CLI or inspect the plugin files for version details in the WordPress admin panel.

Impact Analysis

Unauthenticated attackers could manipulate order statuses, leading to financial losses from fake payments or incorrect inventory counts. Businesses using the plugin might process orders that were never actually paid for, causing operational and financial disruptions.

Mitigation Strategies

Update the Paytm Payment Gateway plugin to version 2.8.9 or later immediately. Configure the plugin's secret key to enable proper verification of payment callbacks.

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