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Vulnerabilities and Security Researches

WCFM Membership – WooCommerce Memberships for Multivendor Marketplace, CVE-2026-3688

CVE, Research URL

CVE-2026-3688

Published on
Jul 08, 2026
Research 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.
Affected versions
max 2.11.11.
Status
vulnerable