CVE-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.

CVSS v3.1 Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-269 CWE-269

Affected Products

Vendor	Product	Versions
najeebmedia	simple_user_registration	< 6.3

References

Other References

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

Frequently Asked Questions

What is CVE-2025-4334? +

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. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2025-4334? +

CVE-2025-4334 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2025-4334? +

CVE-2025-4334 affects products from najeebmedia, specifically: simple_user_registration. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-4334? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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