CVE-2026-3688: CWE-639 Authorization Bypass Through User-Controlled Key in wclovers WCFM Membership – WooCommerce Memberships for Multivendor Marketplace
The WCFM Membership – WooCommerce Memberships for Multivendor Marketplace plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.11.10. This is due to the 'wcfmvm_membership_change' AJAX action not validating user permission to modify other users. This makes it possible for authenticated attackers, with vendor level access and above, to change any user's role to 'wcfm_vendor' by changing their membership plan.
CVE-2026-3688: CWE-639 Authorization Bypass Through User-Controlled Key in wclovers WCFM Membership – WooCommerce Memberships for Multivendor Marketplace
Description
The WCFM Membership – WooCommerce Memberships for Multivendor Marketplace plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.11.10. This is due to the 'wcfmvm_membership_change' AJAX action not validating user permission to modify other users. This makes it possible for authenticated attackers, with vendor level access and above, to change any user's role to 'wcfm_vendor' by changing their membership plan.
CVSS v3.1
Score 8.1high
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-03-06T23:43:39.850Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4e3f0ac9d9e3dbe30d1c61
Added to database: 07/08/2026, 12:14:02 UTC
Last updated: 07/08/2026, 12:14:02 UTC
Views: 1
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