CVE-2026-104767

7.5High

Published 14 Oct 2026 · NVD status: Deferred · AI triage by gemini-3.8-flash

7.5High

Attack vector: Network
Complexity: High
Privileges needed: Low
User interaction: None
Impact: Full C/I/A compromise
Weakness: CWE-269

Impact

Authenticated users can restore previously revoked Administrator privileges and gain full control of the WordPress site. They need existing subscriber-level access, Replace Roles mode enabled, and an account that was formerly an administrator while the plugin was active.

Root cause

The `remember_foreign_roles()` function caches foreign roles in user meta without evicting revoked roles, allowing `maybe_add_role_to_user()` to blindly reassign stale Administrator roles during role-assignment events.

Affected systems

Membership & User Roles for WooCommerce (Automatic Role Changer) plugin up to and including version 20260828

CVSS v3.1 · CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Fix & remediation

Upgrade to a version newer than 20260828 once available. As an immediate mitigation, disable 'Replace Roles' mode in the plugin settings or deactivate the plugin.

shell

$ wp plugin update dfx-woo-role-changer

AI-suggested. Run it in staging first and check it against the vendor advisory. Why?

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NVD description

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by `remember_foreign_roles()`, which merges new foreign roles into the cache but never evicts roles that have since been revoked.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.

References

Source: nvd.nist.gov/vuln/detail/CVE-2026-104767