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CVE-2026-103301— Payment Gateway for Telcell < 2.0.5 - Unauthenticated Payment Confirmation Forgery via Empty-Default Merchant Secret

Quick assessment

Affected
Unknown Payment Gateway for Telcell
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.

在版本 2.0.5 之前的 Telcell WordPress 支付网关插件中，未对收到的支付通知进行真实性验证，原因是用于签署通知的密钥默认为空。这使得未经身份验证的攻击者能够伪造有效的支付通知，并将任意 WooCommerce 订单标记为“已支付”。此外，该处理程序在接收到无效签名时，还会将攻击者指定的订单标记为“失败”。

CVSS 5.3 · Medium EPSS 0.11% · P1

Affected Version Matrix 1

VendorProduct Version RangeStatus
Unknown Payment Gateway for Telcell < 2.0.5 affected
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I. Basic Information for CVE-2026-103301

Vulnerability Information
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Vulnerability Title
Payment Gateway for Telcell < 2.0.5 - Unauthenticated Payment Confirmation Forgery via Empty-Default Merchant Secret
Source: CVE Program / CVE List V5
Vulnerability Description
The Payment Gateway for Telcell WordPress plugin before 2.0.5 does not verify the authenticity of incoming payment notifications, because the secret used to sign them is empty by default, allowing unauthenticated attackers to forge a valid notification and mark arbitrary WooCommerce orders as paid. The same handler also marks an attacker-chosen order as failed when given an invalid signature.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
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 Payment Gateway for Telcell 0 ~ 2.0.5 -

II. Public POCs for CVE-2026-103301

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III. Intelligence Information for CVE-2026-103301

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Same Patch Batch · Unknown · 2026-10-21 · 53 CVEs total

CVE-2026-85683 8.8 HIGH Jane Menu < 1.5.1 - Unauthenticated Stored XSS via Store Config Proxy URL
CVE-2026-14556 5.4 MEDIUM HappyForms < 1.26.15 - Unauthenticated HTML Injection in Admin Notification Email via clie
CVE-2026-107447 5.3 MEDIUM Contest Gallery < 34.0.1 - Unauthenticated Vote Restriction Bypass via Spoofable Client-IP
CVE-2026-105256 5.3 MEDIUM LatePoint < 5.7.5 - Unauthenticated Payment Bypass via 'payment_portion' Parameter
CVE-2026-104641 5.3 MEDIUM Simple Shopping Cart < 5.3.3 - Unauthenticated Payment Bypass via Unverified PayPal IPN Re
CVE-2026-101138 5.3 MEDIUM CMP - Coming Soon & Maintenance 4.1.19 - 4.1.20 - Unauthenticated Maintenance Mode Bypass
CVE-2026-104642 2.7 LOW Simple Shopping Cart 5.1.3 - 5.3.2 - Contributor+ Price Manipulation via Price Verificatio
CVE-2026-106932 Moloni < 5.0.14 - Subscriber+ Arbitrary Order Invoice Generation via genInvoice
CVE-2026-110514 WPZOOM Portfolio < 1.4.34 - Contributor+ Arbitrary Post/Page Type Overwrite via IDOR
CVE-2026-105257 LatePoint < 5.7.5 - Agent+ Customer PII Disclosure via IDOR
CVE-2026-107127 Uncanny Toolkit for LearnDash < 3.8.2 - Account Takeover via Password Reset CSRF
CVE-2026-107128 Uncanny Toolkit for LearnDash < 3.8.2 - Admin+ Cross-Site Account Lockout via Missing Auth
CVE-2026-107788 SmartyParcel (WC Ukr Shipping) < 1.23.4 - Subscriber+ Arbitrary Shipping Label Deletion
CVE-2026-107790 WP Job Openings < 4.1.1 - Author+ Stored XSS via Job Title
CVE-2026-107789 SmartyParcel < 1.23.4 - Unauthenticated Shipping Label Disclosure via IDOR
CVE-2026-108073 SureCart < 4.9.5 - Unauthenticated Private Catalog Data Disclosure via 'expand' Parameter
CVE-2026-109147 WP Booking System < 2.1.0.3 - Reflected XSS via 'booking_id' Parameter
CVE-2026-109926 Productive Commerce < 1.1.49 - Subscriber+ Arbitrary Plugin Activation
CVE-2026-110523 WP User Manager 2.9.21 - 2.9.25 - Unauthenticated Privilege Escalation via Paid Registrati
CVE-2026-100145 Synchrony Financing 1.0.5 - 1.1.1 - Unauthenticated Order Takeover via admin_order_callbac

Showing top 20 of 53 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Payment Gateway for Telcell
Same vendor: Unknown

V. Comments for CVE-2026-103301

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