CVE-2026-104767
HighCVSS 7.5Exploitation Probability (EPSS)
Low risk26th percentile - higher than 26% of all known CVEs
Summary
The Membership & User Roles for WooCommerce plugin is vulnerable to privilege escalation in versions up to and including 20260828. Authenticated attackers with subscriber-level access can restore previously revoked administrator privileges.
Risk Assessment
Attackers can gain full control of the website, potentially leading to data compromise, content modification, and further attacks.
Recommendation
Update the plugin to the latest version that includes a security fix for the privilege escalation vulnerability.
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Original NVD description (English source)
The Membership & User Roles for WooCommerce (Automatic Role Changer) plugin for WordPress is vulnerable to Privilege Escalation in versions up to, and including, 20260828. This is due to the `maybe_add_role_to_user()` function unconditionally re-assigning every role stored in the `dfxwcrc_foreign_roles` user meta cache without verifying that each cached role is still actively assigned by the external provider — a condition made permanent by `remember_foreign_roles()`, which merges new foreign roles into the cache but never evicts roles that have since been revoked. This makes it possible for authenticated attackers with subscriber-level access and above to restore a previously revoked Administrator role to their own account, gaining full administrative control of the site, by triggering any role-assignment event such as completing a purchase for a role-mapped product. Exploitation requires Replace Roles mode to be enabled and the attacker's account to have previously received Administrator legitimately through a separate role-management mechanism while the plugin was active, so that `administrator` was written into the `dfxwcrc_foreign_roles` user meta cache before the external provider revoked it.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS