CVE-2026-16746: CWE-639 Authorization Bypass Through User-Controlled Key in MultiVendorX
The MultiVendorX WordPress plugin before 5.0.11 does not verify that the requested store belongs to the current user in one of its REST API endpoints, allowing any vendor-level user to read other vendors' commission and financial data.
AI Analysis
Technical Summary
CVE-2026-16746 describes an authorization bypass vulnerability (CWE-639) in the MultiVendorX WordPress plugin prior to version 5.0.11. The plugin fails to verify that the requested store belongs to the current user in one of its REST API endpoints, which enables any vendor-level user to read sensitive commission and financial data of other vendors. This vulnerability affects installations that have not updated to version 5.0.11 or later.
Potential Impact
The vulnerability allows unauthorized disclosure of commission and financial data between vendors, potentially leading to privacy breaches and information leakage. The CVSS score is low (2.7), indicating limited impact primarily on confidentiality with no integrity or availability effects.
Mitigation Recommendations
No official patch or remediation guidance is currently provided. Users should upgrade to MultiVendorX version 5.0.11 or later once available, as the vulnerability affects versions before 5.0.11. Until a fix is confirmed, restrict vendor-level user permissions and monitor access to sensitive data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
CVE-2026-16746: CWE-639 Authorization Bypass Through User-Controlled Key in MultiVendorX
Description
The MultiVendorX WordPress plugin before 5.0.11 does not verify that the requested store belongs to the current user in one of its REST API endpoints, allowing any vendor-level user to read other vendors' commission and financial data.
CVSS v3.1
Score 2.7low
Affected software
MultiVendorX
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-16746 describes an authorization bypass vulnerability (CWE-639) in the MultiVendorX WordPress plugin prior to version 5.0.11. The plugin fails to verify that the requested store belongs to the current user in one of its REST API endpoints, which enables any vendor-level user to read sensitive commission and financial data of other vendors. This vulnerability affects installations that have not updated to version 5.0.11 or later.
Potential Impact
The vulnerability allows unauthorized disclosure of commission and financial data between vendors, potentially leading to privacy breaches and information leakage. The CVSS score is low (2.7), indicating limited impact primarily on confidentiality with no integrity or availability effects.
Mitigation Recommendations
No official patch or remediation guidance is currently provided. Users should upgrade to MultiVendorX version 5.0.11 or later once available, as the vulnerability affects versions before 5.0.11. Until a fix is confirmed, restrict vendor-level user permissions and monitor access to sensitive data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-07-23T11:36:01.790Z
- State
- PUBLISHED
Threat ID: 6a72d7aebf8831d5395e82c2
Added to database: 08/05/2026, 06:26:54 UTC
Last enriched: 08/12/2026, 14:57:09 UTC
Last updated: 09/17/2026, 22:01:33 UTC
Views: 24
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