WordPress MultiVendorX plugin <= 5.0.14 - Broken Access Control vulnerability
Summary
| CVE | CVE-2026-66651 |
|---|---|
| State | PUBLISHED |
| Assigner | Patchstack |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-18 15:16:59 UTC |
| Updated | 2026-08-20 12:49:04 UTC |
| Description | Unauthenticated Broken Access Control in MultiVendorX <= 5.0.14 versions. |
Risk And Classification
Primary CVSS: v3.1 6.5 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS: 0.001940000 probability, percentile 0.094530000 (date 2026-08-20)
Problem Types: CWE-862 | CWE-862 CWE-862 Missing Authorization
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| 3.1 | CNA | CVSS | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
LowIntegrity
LowAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | MultiVendorX | MultiVendorX | affected n/a 5.0.14 custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| patchstack.com/database/wordpress/plugin/dc-woocommerce-multi-vendor/vulnera... | [email protected] | patchstack.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Jakub Herman | Patchstack Bug Bounty Program (en)
There are currently no legacy QID mappings associated with this CVE.