CVE-2026-103331— UniPAY Payment Gateway For WooCommerce <= 2.3 - Unauthenticated Order Payment Forgery via Empty IPN Secret
Quick assessment
Affected
Unknown UniPAY Payment Gateway For WooCommerce
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.
WooCommerce WordPress 插件"UniPAY Payment Gateway"在 2.3 及更早版本中，未能正确验证支付通知的真实性。由于该插件默认使用空字符串作为商户密钥来校验通知签名，未经验证的攻击者可伪造有效的支付通知，从而将任意订单标记为已支付。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-103331
Vulnerability Information
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
UniPAY Payment Gateway For WooCommerce <= 2.3 - Unauthenticated Order Payment Forgery via Empty IPN Secret
Source: CVE Program / CVE List V5
Vulnerability Description
The UniPAY Payment Gateway For WooCommerce WordPress plugin through 2.3 does not properly verify the authenticity of payment notifications, as their signature is checked against a merchant secret that is empty by default, allowing unauthenticated attackers to forge a valid notification and mark arbitrary orders as paid.
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 | UniPAY Payment Gateway For WooCommerce | 0 ~ 2.3 | - |
|
II. Public POCs for CVE-2026-103331
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Same Patch Batch · Unknown · 2026-10-28 · 42 CVEs total
| CVE-2026-110508 | 5.3 MEDIUM | Essential Addons for Elementor 6.7.3 - 6.8.6 - Unauthenticated Registration Approval Bypas |
| CVE-2026-106648 | 5.3 MEDIUM | Royal Elementor Addons < 1.7.1070 - Unauthenticated Arbitrary Email Recipient Injection vi |
| CVE-2026-103330 | 5.3 MEDIUM | Sadad QA Payment 1.28 - Unauthenticated Arbitrary Order Payment Confirmation via Signature |
| CVE-2026-103313 | 5.3 MEDIUM | BitPay Gateway for WooCommerce <= 4.1.3 - Unauthenticated Payment Bypass via Payment Retur |
| CVE-2026-115223 | 4.9 MEDIUM | Smart Popup by Supsystic < 2.0.2 - Admin+ SSTI via Popup Text Block |
| CVE-2026-110691 | WPOrLogin < 3.1.0 - Unauthenticated Hide Login Slug Update | |
| CVE-2026-103372 | Payconiq for WooCommerce <= 1.0.4 - Unauthenticated Order Key Disclosure | |
| CVE-2026-110524 | Copy Anything to Clipboard < 5.5.5 - Contributor+ Stored XSS via 'success-text' Shortcode | |
| CVE-2026-110509 | Essential Addons for Elementor < 6.8.7 - Unauthenticated Private Post Meta Disclosure via | |
| CVE-2026-107100 | Royal Elementor Addons 1.3.81 - 1.7.1069 - Unauthenticated Non-Public Post Content Disclos | |
| CVE-2026-110506 | Page Builder by SiteOrigin < 2.38.0 - Contributor+ Stored XSS via panels_info.class | |
| CVE-2026-110292 | PayPlug for WooCommerce 2.9.0 - 3.1.0 - Unauthenticated Order Key Disclosure and Order Can | |
| CVE-2026-110507 | Page Builder by SiteOrigin < 2.38.0 - Contributor+ Sensitive Data Disclosure via Post Loop | |
| CVE-2026-106002 | Court Reservation < 1.12.4 - Unauthenticated Arbitrary Challenge Deletion | |
| CVE-2026-106003 | Court Reservation < 1.12.4 - Unauthenticated Reservation Type Addition and Deletion | |
| CVE-2026-106647 | Royal Elementor Addons 1.3.68 - 1.7.1069 - Author+ Form Submission Interception via Widget | |
| CVE-2026-107098 | Royal Elementor Addons 1.7.1037 - 1.7.1069 - Contributor+ Stored XSS via Google Maps Widge | |
| CVE-2026-107097 | Royal Elementor Addons 1.3.71 - 1.7.1069 - Unauthenticated Mailchimp Audience Injection vi | |
| CVE-2026-103382 | Casso Auto-confirm Bank Transfer < 4.2.0 - Unauthenticated WooCommerce Order Payment Confi | |
| CVE-2026-103688 | Checkout Files Upload for WooCommerce < 2.4.0 - Unauthenticated Arbitrary File Upload |
Showing top 20 of 42 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same vendor: Unknown
-
CVE-2026-115223
Smart Popup by Supsystic < 2.0.2 - Admin+ SSTI via Popup Tex -
CVE-2026-110508
Essential Addons for Elementor 6.7.3 - 6.8.6 - Unauthenticat -
CVE-2026-106648
Royal Elementor Addons < 1.7.1070 - Unauthenticated Arbitrar -
CVE-2026-103330
Sadad QA Payment 1.28 - Unauthenticated Arbitrary Order Paym -
CVE-2026-103313
BitPay Gateway for WooCommerce <= 4.1.3 - Unauthenticated Pa