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CVE-2026-81740— Paytm Payment Gateway < 2.8.9 - Unauthenticated Order Status Manipulation 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 插件在版本 2.8.9 之前，当未配置其密钥时（即插件刚激活后的默认状态），不会验证支付回调是否确实来自支付提供商。这允许未经验证的攻击者更改任意订单的状态，包括将未付款订单标记为已付款，并减少库存。

AI Predicted 9.1 Difficulty: Trivial EPSS 0.14% · P3

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Unknown Paytm Payment Gateway < 2.8.9 affected
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I. Basic Information for CVE-2026-81740

Vulnerability Information
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Vulnerability Title
Paytm Payment Gateway < 2.8.9 - Unauthenticated Order Status Manipulation via Payment Callback
Source: CVE Program / CVE List V5
Vulnerability 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.
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-2026-81740

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III. Intelligence Information for CVE-2026-81740

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Other References for CVE-2026-81740 (1)

Same Patch Batch · Unknown · 2026-10-02 · 22 CVEs total

CVE-2026-19856 6.5 MEDIUM All in One SEO < 5.0.2.1 - Unauthenticated Arbitrary Shortcode Execution via Search Query
CVE-2026-84740 6.5 MEDIUM The Events Calendar 6.12.0 - 6.17.5 - Unauthenticated Arbitrary Shortcode Execution via 'v
CVE-2026-92924 5.4 MEDIUM Unlimited Elements For Elementor < 2.0.21 - Subscriber+ Arbitrary Shortcode Execution via
CVE-2026-85005 5.4 MEDIUM Popup Maker WP 1.2.2.1 - 1.4.5 - Subscriber+ Zero-Argument PHP Callable Invocation via Mis
CVE-2026-13413 5.3 MEDIUM CMP - Coming Soon & Maintenance < 4.1.20 - Unauthenticated Maintenance Mode Bypass via Log
CVE-2026-90952 5.3 MEDIUM WP Edit Password Protected 2.0.0 - 2.0.6 - Unauthenticated Site-Wide Access Mode Bypass vi
CVE-2026-90987 5.3 MEDIUM Easy PayPal & Stripe Buy Now Button 1.8 - 2.0.5 - Unauthenticated Payment Amount Manipulat
CVE-2026-91020 5.3 MEDIUM WebToffee Gift Cards for WooCommerce < 1.3.1 - Unauthenticated Gift Card Amount Manipulati
CVE-2026-79618 4.3 MEDIUM WP User Frontend < 4.3.12 - Subscriber+ Post Creation via Subscription-Gated Form
CVE-2026-1661 4.3 MEDIUM WP Mail Logging < 1.17.0 - Unauthenticated HTML Injection
CVE-2026-97219 4.3 MEDIUM MStore API 4.21.1 - 4.22.0 - Subscriber+ Payment Bypass via 'status' Parameter
CVE-2026-97317 Giveaways and Contests by RafflePress < 1.12.27 - Unauthenticated reCAPTCHA Secret Key Dis
CVE-2026-97318 Giveaways and Contests by RafflePress < 1.12.27 - Unauthenticated Stored Open Redirect via
CVE-2026-94298 BuildKit < 1.0.29 - Contributor+ Stored SQLi via list_content Parameter
CVE-2026-91023 Motors – Car Dealership & Classified Listings < 1.4.124 - Subscriber+ Cross-User Post Meta
CVE-2026-91022 Motors < 1.4.124 - Listing Manager+ Stored XSS via Badge Color
CVE-2026-13718 Tabs Responsive <= 2.5 - Shop Manager+ Stored XSS via WooCommerce Product Tab Content
CVE-2026-85016 Unlimited Elements For Elementor < 2.0.21 - Contributor+ Stored XSS via Icon Library Param
CVE-2026-90988 Request a Quote <= 2.5.6 - Unauthenticated Quote Request Contact Record Disclosure via emd
CVE-2026-91828 OMGF < 6.3.11 - Unauthenticated DoS via do_optimize

Showing top 20 of 22 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Paytm Payment Gateway
Same vendor: Unknown

V. Comments for CVE-2026-81740

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