CVE-2026-66651— WordPress MultiVendorX plugin <= 5.0.19 - Broken Access Control vulnerability
Quick assessment
Affected
MultiVendorX MultiVendorX
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.
WordPress MultiVendorX是WordPress基金会的一款电商系统组件。 WordPress MultiVendorX 5.0.14及之前版本存在授权问题漏洞，该漏洞源于未经验证的访问控制问题，可能导致未经身份验证的攻击者访问或修改数据。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| MultiVendorX | MultiVendorX | ≤ 5.0.19 |
affected |
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I. Basic Information for CVE-2026-66651
Vulnerability Information
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Vulnerability Title
WordPress MultiVendorX plugin <= 5.0.19 - Broken Access Control vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Missing Authorization vulnerability in MultiVendorX MultiVendorX dc-woocommerce-multi-vendor allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects MultiVendorX: from n/a through 5.0.19.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress MultiVendorX 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress MultiVendorX是WordPress基金会的一款电商系统组件。 WordPress MultiVendorX 5.0.14及之前版本存在授权问题漏洞，该漏洞源于未经验证的访问控制问题，可能导致未经身份验证的攻击者访问或修改数据。
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 |
|---|---|---|---|---|
| MultiVendorX | MultiVendorX | 0 ~ 5.0.19 | - |
|
II. Public POCs for CVE-2026-66651
| # | POC Description | Source Link | Shenlong Link |
|---|
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V. Comments for CVE-2026-66651
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