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CVE-2026-86406

HIGH 7.5 CVSS 3.1
Published
September 13, 2026
Last modified
September 14, 2026
NVD status
Deferred
Reported by
contact@wpscan.com
Weakness
CWE-269
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

The User Registration & Membership WordPress plugin before 5.2.8 does not check the capability of the user making a membership purchase, and does not validate the payment method or the plan submitted with it, allowing any authenticated user such as a subscriber to be granted the WordPress role attached to a paid plan without paying for it. Where the site owner has mapped a plan to a privileged role, this leads to privilege escalation up to administrator.

Affected WordPress components

  • User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder Plugin · user-registration
    Confirmed match Active
    From 4.4.6 (including) to 5.2.8 (excluding)
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • Unknown User Registration & Membership — From 4.4.6 (including) to 5.2.8 (excluding)

References

  • wpscan.com https://wpscan.com/vulnerability/0fb4ec40-3f92-4c7e-8877-8898b355d78d/
  • nvd.nist.gov Official NVD record