CVE-2026-81809
Deferred Deferred - Pending Action

SQL Injection in Paytm Payment Gateway WordPress Plugin

Publication date: 2026-10-01

Last updated on: 2026-10-01

Assigner: WPScan

Description
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.

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Meta Information

Published
2026-10-01
Last Modified
2026-10-01
Generated
2026-10-19
AI Q&A
2026-10-01
EPSS Evaluated
2026-10-18
NVD
CVE-2026-81809
EUVD
EUVD-2026-90510

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-89 The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.

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Executive Summary

This vulnerability is an unauthenticated SQL injection flaw in the Paytm Payment Gateway WordPress plugin before version 2.8.9. It occurs because the plugin does not properly escape data from payment callbacks before using it in SQL queries. Additionally, the integrity check for these callbacks can be forged when the gateway is enabled without credentials, allowing attackers to exploit the flaw without authentication.

Detection Guidance

To detect this vulnerability, check the installed version of the Paytm Payment Gateway WordPress plugin. If it is below 2.8.9, the system is vulnerable. Use commands like 'wp plugin list' in WordPress or inspect the plugin files directly.

Impact Analysis

This vulnerability allows unauthenticated attackers to perform SQL injection attacks, which could lead to unauthorized access to sensitive data stored in the WordPress database, such as user credentials, payment information, or other confidential details. Attackers could manipulate or delete data, potentially causing service disruption or data breaches.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR and HIPAA by exposing sensitive personal or health data. GDPR requires protection of personal data, and a breach could result in fines or legal action. HIPAA mandates safeguards for protected health information, and a breach could lead to penalties and reputational damage.

Mitigation Strategies

Immediately update the Paytm Payment Gateway plugin to version 2.8.9 or later. If updating is not possible, disable the plugin until the update can be applied to prevent exploitation.

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