CVE-2025-4334

Simple User Registration <= 6.3 - Unauthenticated Privilege Escalation

State
Published
Severity
9.8 Critical
Published
Jun 26, 2025
Updated
Apr 8, 2026
Reserved
May 5, 2025

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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.

Scores

CVSSScoreVectorSource
3.19.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWordfence

Weaknesses

  • CWE-269 Improper Privilege Management

Affected Products

ProductVersions
Simple User Registrationnmedia
  • 6.3 and earlierAffected

References

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