CVE-2026-6939— CorvusPay WooCommerce Payment Gateway <= 2.7.4 - Unauthenticated Stored Cross-Site Scripting via 'approval_code' Parameter
Possible ATT&CK Techniques 2AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by CompromiseAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| corvusinfo | CorvusPay WooCommerce Payment Gateway | ≤ 2.7.4 | affected |
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I. Basic Information for CVE-2026-6939
Vulnerability Information
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Vulnerability Title
CorvusPay WooCommerce Payment Gateway <= 2.7.4 - Unauthenticated Stored Cross-Site Scripting via 'approval_code' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
The CorvusPay WooCommerce Payment Gateway plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'approval_code' parameter in all versions up to, and including, 2.7.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The unauthenticated REST endpoint POST /wp-json/corvuspay/success/ is registered with permission_callback set to __return_true, and although a signature validation step exists it only logs the result without halting execution, meaning an attacker can supply a completely arbitrary signature and have a malicious approval_code stored in the database unchallenged.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress CorvusPay WooCommerce Payment Gateway 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress CorvusPay WooCommerce Payment Gateway是WordPress基金会的一款灵活、高度可靠且高可用性的互联网支付网关服务。 WordPress CorvusPay WooCommerce Payment Gateway 2.7.4及之前版本存在跨站脚本漏洞，该漏洞源于对'approval_code'参数清理和转义不足，可能导致未经身份验证的攻击者在页面中注入任意Web脚本，当用户访问受影响的页面时执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| corvusinfo | CorvusPay WooCommerce Payment Gateway | 0 ~ 2.7.4 | - |
II. Public POCs for CVE-2026-6939
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-6939 (2)
Other References for CVE-2026-6939 (3)
IV. Related Vulnerabilities
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@better-auth/sso before 1.6.21 Account Takeover via SSO - CVE-2026-67333
better-auth before 1.6.13 Stored XSS via javascript redirect - CVE-2025-71404
better-auth before 1.1.16 Reflected XSS via error parameter
V. Comments for CVE-2026-6939
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