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CVE-2025-4334

CRITICAL 9.8 CVSS 3.1
Published
June 26, 2025
Last modified
August 11, 2026
NVD status
Analyzed
Reported by
security@wordfence.com
Weakness
CWE-269
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

The Simple User Registration plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 6.3. This is due to insufficient restrictions on user meta values that can be supplied during registration. This makes it possible for unauthenticated attackers to register as an administrator.

Affected WordPress components

  • MemberHero – Simple User Registration & Login Plugin · wp-registration
    Confirmed match Active
    Up to and including 6.3
    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

  • nmedia Simple User Registration — Up to and including 6.3
  • najeebmedia memberhero — Up to and including 6.3

References