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CVE-2026-81809— Paytm Payment Gateway < 2.8.9 - Unauthenticated SQLi via Payment Callback

Quick assessment

Affected
Unknown Paytm Payment Gateway
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Paytm 支付网关 WordPress 插件在 2.8.9 版本之前，未对从支付回调中获取的数据进行适当的转义处理，就直接将其用于 SQL 语句中。此外，当启用该网关但未配置凭据时，对这些回调的完整性校验可以被伪造，从而允许未经身份验证的用户执行 SQL 注入攻击。

AI Predicted 9.8 Difficulty: Easy

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-81809

Vulnerability Information
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Vulnerability Title
Paytm Payment Gateway < 2.8.9 - Unauthenticated SQLi via Payment Callback
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Unknown Paytm Payment Gateway 0 ~ 2.8.9 -

II. Public POCs for CVE-2026-81809

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III. Intelligence Information for CVE-2026-81809

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Other References for CVE-2026-81809 (1)

Same Patch Batch · Unknown · 2026-10-01 · 15 CVEs total

CVE-2026-96173 Payments for Hubtel < 1.0.2 - Unauthenticated Order Key Disclosure via IDOR
CVE-2026-96200 Payments for Hubtel < 1.0.2 - Unauthenticated Payment Confirmation Forgery via Delayed Pay
CVE-2026-96255 Payments for Hubtel < 1.0.2 - Unauthenticated Payment Gateway Credentials Disclosure via D
CVE-2026-89296 Pro Like Button < 2.0 - Unauthenticated SQLi via 'postid' Parameter
CVE-2026-87973 If-So Dynamic Content 1.9.9 - 1.10.1 - Editor+ Stored XSS via Conversion Name
CVE-2026-87970 If-So Dynamic Content 1.8 - 1.10.1 - Reflected XSS via render_ifso_shortcodes
CVE-2026-92412 Five Star Restaurant Reviews < 2.3.14 - Reflected XSS
CVE-2026-90972 WP Fusion Lite < 3.48.0 - Subscriber+ User Email Disclosure and Cross-User CRM Data Deleti
CVE-2026-90974 WP Fusion Lite 3.37.14 - 3.47.14 - Unauthenticated CRM Integration Settings Update
CVE-2026-19253 Cache Enabler < 1.8.17 - Unauthenticated Arbitrary File and Directory Deletion via cache_e
CVE-2026-81739 Paytm Payment Gateway < 2.8.9 - Unauthenticated Stored XSS via Payment Callback
CVE-2026-86610 Download Manager < 3.3.71 - Author+ Stored XSS via Package Icon
CVE-2026-101148 BackupSheep <= 1.8 - Unauthenticated Arbitrary File Deletion and Backup Exfiltration via E
CVE-2026-101147 Featured Image from URL (FIFU) Free & Premium - Administrator Account Creation via CSRF

IV. Related Vulnerabilities

Same product: Paytm Payment Gateway
Same vendor: Unknown

V. Comments for CVE-2026-81809

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