CVE-2026-81428: CWE-639 Authorization Bypass Through User-Controlled Key in WC Vendors
Description
The WC Vendors WordPress plugin before 2.7.2.1 does not verify ownership or the object type of user-supplied IDs when saving product variations, allowing authenticated users with the vendor role to modify product variations belonging to other vendors, and to change the status and title of arbitrary posts, via IDOR.
CVSS v3.1
Score 6.5medium
Affected software
WC Vendors
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The WC Vendors WordPress plugin versions prior to 2.7.2.1 contain an authorization bypass vulnerability (CWE-639) due to insufficient verification of user-supplied IDs when saving product variations. Authenticated users with the vendor role can exploit this flaw to modify product variations of other vendors and alter the status and titles of arbitrary posts. This vulnerability is classified as an IDOR, allowing unauthorized modification of data by abusing improper access controls.
Potential Impact
The vulnerability allows authenticated vendor users to modify product variations that do not belong to them and to change the status and titles of arbitrary posts. This can lead to unauthorized data manipulation and potential disruption of vendor product listings. The CVSS score is 6.5 (medium severity), indicating a moderate impact with high integrity impact but no confidentiality or availability impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch link is provided, users should monitor the WC Vendors plugin updates and apply any forthcoming patches promptly. Until a fix is available, restrict vendor role permissions if possible to limit exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-08-26T19:11:51.959Z
- State
- PUBLISHED
Threat ID: 6a97bd37acd9273b49d9bc51
Added to database: 09/02/2026, 06:07:51 UTC
Last enriched: 09/07/2026, 14:07:44 UTC
Last updated: 10/15/2026, 18:48:24 UTC
Views: 56
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.