CVE-2026-16605: CWE-862 Missing Authorization in MultiVendorX
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.
AI Analysis
Technical Summary
CVE-2026-16605 is a missing authorization vulnerability (CWE-862) in the MultiVendorX WordPress plugin prior to version 5.0.11. The plugin fails to verify that the store targeted through its REST API belongs to the requesting vendor. Consequently, an authenticated vendor with Store Owner or higher privileges can perform unauthorized actions on other vendors' stores, including viewing sensitive data, taking control, deleting, or modifying those stores.
Potential Impact
An authenticated vendor can abuse the REST API to access and control other vendors' stores on the marketplace. This can lead to unauthorized data exposure, loss of store control, and permanent deletion or modification of store data, severely impacting the integrity and availability of vendor stores within the marketplace.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict vendor privileges carefully and monitor API access to limit potential abuse.
CVE-2026-16605: CWE-862 Missing Authorization in MultiVendorX
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 v3.1
Score 7.2high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-16605 is a missing authorization vulnerability (CWE-862) in the MultiVendorX WordPress plugin prior to version 5.0.11. The plugin fails to verify that the store targeted through its REST API belongs to the requesting vendor. Consequently, an authenticated vendor with Store Owner or higher privileges can perform unauthorized actions on other vendors' stores, including viewing sensitive data, taking control, deleting, or modifying those stores.
Potential Impact
An authenticated vendor can abuse the REST API to access and control other vendors' stores on the marketplace. This can lead to unauthorized data exposure, loss of store control, and permanent deletion or modification of store data, severely impacting the integrity and availability of vendor stores within the marketplace.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict vendor privileges carefully and monitor API access to limit potential abuse.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-07-22T14:25:19.742Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a72d7aebf8831d5395e82b9
Added to database: 08/05/2026, 06:26:54 UTC
Last enriched: 08/05/2026, 07:02:04 UTC
Last updated: 08/06/2026, 00:41:11 UTC
Views: 3
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