CVE-2026-66651

MEDIUM 6.5

WordPress MultiVendorX plugin <= 5.0.19 - Broken Access Control vulnerability

CVSS Score

6.5

EPSS Score

0.3%

EPSS Percentile

17th

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.

CWE	CWE-862
Vendor	multivendorx
Product	multivendorx
Published	Aug 18, 2026
Last Updated	Sep 30, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

MultiVendorX / MultiVendorX

0 ≤ 5.0.19

References

NVD ↗ CVE.org ↗ EPSS Data ↗

patchstack.com: https://patchstack.com/database/wordpress/plugin/dc-woocommerce-multi-vendor/vulnerability/wordpress-multivendorx-plugin-5-0-14-broken-access-control-vulnerability?_s_id=cve

Credits

Jakub Herman | Patchstack Bug Bounty Program