CVE-2026-16605
Received Received - Intake

MultiVendorX WordPress Plugin Store Takeover Vulnerability

Publication date: 2026-08-05

Last updated on: 2026-08-05

Assigner: WPScan

Description
The MultiVendorX WordPress plugin before 5.0.11 does not verify that the store targeted through its REST API belongs to the requesting vendor, allowing an authenticated vendor (Store Owner and above) to view, take over, permanently delete, or modify any other vendor's store on the marketplace.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-08-05
Last Modified
2026-08-05
Generated
2026-08-05
AI Q&A
2026-08-05
EPSS Evaluated
N/A
NVD
CVE-2026-16605
EUVD
EUVD-2026-53106

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
multivendorx plugin to 5.0.11 (exc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability affects the MultiVendorX WordPress plugin before version 5.0.11. It involves missing authorization checks in the plugin's REST API, allowing authenticated users with Store Owner privileges or higher to perform unauthorized actions on other vendors' stores. Specifically, these users can view, take over, permanently delete, or modify any other vendor's store on the marketplace.

Detection Guidance

Check the installed version of the MultiVendorX plugin in WordPress. If it is below 5.0.11, the system is vulnerable. Use commands like 'wp plugin list' in WordPress CLI or inspect the plugin files directly.

Impact Analysis

An attacker with Store Owner privileges or higher could access, modify, or delete other vendors' stores without permission. Additionally, any authenticated user, including Subscribers, could access sensitive information like other store owners' WordPress password hashes and email addresses through a related issue.

Compliance Impact

This vulnerability could lead to unauthorized access to personal and sensitive data, violating GDPR and HIPAA compliance requirements. Exposure of password hashes and email addresses may result in data breaches, triggering regulatory penalties and legal consequences.

Mitigation Strategies

Update the MultiVendorX plugin to version 5.0.11 or later immediately. Restrict access to authenticated users with minimal privileges and review user roles to ensure no unnecessary elevated permissions exist.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-16605. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart