CVE-2025-4334

Simple User Registration <= 6.3 - Unauthenticated Privilege Escalation

Published Jun 26, 2025 CVSS 3.1 · 9.8 Critical EPSS 2.6% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Najeebmedia memberhero
CPEs cpe:2.3:a:najeebmedia:simple_user_registration:*:*:*:*:*:wordpress:*:* cpe:2.3:a:najeebmedia:memberhero:*:*:*:*:*:wordpress:*:*
Vendors & Products Najeebmedia simple User Registration
Najeebmedia memberhero
Type Values Removed Values Added
First Time appeared Najeebmedia
Najeebmedia simple User Registration
CPEs cpe:2.3:a:najeebmedia:simple_user_registration:*:*:*:*:*:wordpress:*:*
Vendors & Products Najeebmedia
Najeebmedia simple User Registration
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Simple User Registration <= 6.3 - Unauthenticated Privilege Escalation
Weaknesses CWE-269
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Wordfence
Published
Updated
Apr 8, 2026, 5:20 PM
Reserved
May 5, 2025, 3:26 PM
Status
Analyzed
Published
Jun 26, 2025, 2:15 AM
Modified
Aug 11, 2026, 2:44 PM