CVE-2026-104767 Membership & User Roles for WooCommerce - Privilege Escalation

Membership & User Roles for WooCommerce (Automatic Role Changer) plugin for WordPress <= 20260828 contains a privilege escalation caused by improper validation of cached foreign roles in maybe_add_role_to_user(), letting authenticated subscribers restore revoked Administrator roles, exploit requires Replace Roles mode enabled and prior legitimate Administrator role assignment.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.34% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Privilege Escalation
Impact
Privilege Escalation
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
14 October 2026
Updated
15 October 2026
Weakness
CWE-269

Vendor fix

Update to a version later than 20260828 or the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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