CVE-2026-104767 Privilege escalation in Membership & User Roles for WooCommerce (Automatic Role Changer)
Authenticated users can regain revoked Administrator privileges via stale role cache if Replace Roles mode is enabled.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-104767?
CVE-2026-104767 is a high-severity vulnerability in davefx Membership & User Roles for WooCommerce (Automatic Role Changer), published on 14 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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by `remember_foreign_roles()`, which merges new foreign roles into the cache but never evicts roles that have since been revoked.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.
Weakness: CWE-269
Which versions are affected by CVE-2026-104767?
How do I fix CVE-2026-104767?
No fix has been published for CVE-2026-104767 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-104767 being exploited?
There is no known exploitation of CVE-2026-104767 in the wild and no public exploit code.
Sources
Also known as GHSA-m963-j4qw-ph48.