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9.8 Critical

CVE-2025-4334 The Simple User Registration plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and…

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 products and versions

Product Affected versions Fixed in
Simple User Registration 6.3 earliest → 6.3 No fix stated

Other CVEs of Simple User Registration

The 3 CVEs of Simple User Registration →
CVE-2026-0844 The Simple User Registration plugin for WordPress is vulnerable to privilege escalation in versions up to, and… 8.8 High CVE-2025-12160 The Simple User Registration plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'wpr_admin_msg'… 7.2 High
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