What is the CVSS score of CVE-2026-1492?

CVE-2026-1492 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of WordPress are affected by CVE-2026-1492?

A critical privilege escalation vulnerability in a WordPress user registration plugin affects any organization using this plugin on versions 5.1.2 or earlier, potentially allowing unauthorized users…

Is there a public PoC exploit available for CVE-2026-1492?

Yes, a public proof-of-concept exploit is available for CVE-2026-1492. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2026-1492?

Within 24 hours: Identify all WordPress instances using this plugin and document current version numbers; disable the plugin immediately if version 5.1.2 or earlier is detected. Within 7 days: Audit user accounts for unauthorized privilege escalation and review access logs; contact the vendor for patch timeline and interim guidance. Within 30 days: Once a patch is released, perform staged testing in a non-production environment before deployment across all instances.

WordPress CVE-2026-1492

CRITICAL

Improper Privilege Management (CWE-269)

2026-03-03 security@wordfence.com

WordPress Privilege Escalation

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Re-analysis Queued

Apr 22, 2026 - 21:37 vuln.today

cvss_changed

Analysis Generated

Mar 12, 2026 - 22:05 vuln.today

CVE Published

Mar 03, 2026 - 05:17 nvd

CRITICAL 9.8

DescriptionCVE.org

The User Registration & Membership - Custom Registration Form Builder, Custom Login Form, User Profile, Content Restriction & Membership Plugin plugin for WordPress is vulnerable to improper privilege management in all versions up to, and including, 5.1.2. This is due to the plugin accepting a user-supplied role during membership registration without properly enforcing a server-side allowlist. This makes it possible for unauthenticated attackers to create administrator accounts by supplying a role value during membership registration.