CVE-2026-1492

CRITICAL
2026-03-03 [email protected]
9.8
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 22:05 vuln.today
CVE Published
Mar 03, 2026 - 05:17 nvd
CRITICAL 9.8

Tags

WordPress

Description

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.

Analysis

Privilege escalation in User Registration & Membership WordPress plugin.

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Remediation

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. …

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Priority Score

49
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +49
POC: 0

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CVE-2026-1492 vulnerability details – vuln.today
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