CVE-2025-4334CRITICAL 9.8EPSS p78.8%

CVE-2025-4334CVE-2025-4334

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.

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS2.05% probability of exploitation · percentile 78.8% · 2026-06-19T12:03:05Z
Published2025-06-26
Last modified2026-04-08

Underlying weaknesses· 1

CWE-269

References

  1. https://plugins.trac.wordpress.org/browser/wp-registration/trunk/inc/classes/class.register.php#L135
  2. https://plugins.trac.wordpress.org/changeset/3327946/
  3. https://www.wordfence.com/threat-intel/vulnerabilities/id/c211e0c0-3086-43d2-853c-489f9c42b0ab?source=cve

1

TypeTargetConfidenceTier
WeaknessImproper Privilege Managementcwe-2690%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.