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%.

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

View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

Access

Access WordPress registration form
Exploit

Submit membership registration with admin role parameter
Execution

Plugin accepts role without validation
Impact

Attacker gains administrator account privileges

Vulnerability Assessment

Weakness	CWE CWE-269 OWASP Top 10:2025 A06:2025 - Insecure Design ASVS 5.0 V8 - Authorization Least privilege enforcement MITRE ATT&CK 1 technique across 1 tactic: Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Exploitation Conditions	WordPress site with User Registration & Membership Plugin version 5.1.2 or earlier installed and activated with membership registration form enabled. No authentication required; unauthenticated users can access the registration endpoint.
Impact	CVSS 9.8.
Exploit ScenarioDerived	Escalate to admin via registration.

Act Now Prioritize within 24-48h. Why: CRITICAL severity + public POC available.

No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Privilege escalation in User Registration & Membership WordPress plugin.

Earlier versions of this analysis (1)

v1 Mar 12, 2026 - 22:05 CVSS 9.8

Privilege escalation in registration plugin.

RemediationAI

Update plugin.

Affected ProductsAI

User Registration & Membership plugin

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

CWE-269.

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Exploit and PoC references, threat intelligence from 22 sources

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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

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.

Executive ViewAI

Why It Matters

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 to gain administrative access without a patch currently available. This poses immediate risk to user data, website integrity, and regulatory compliance across all affected WordPress installations.

Business Impact: Severe

Compensating Controls

Disable the plugin entirely until patched; if business-critical, implement Web Application Firewall rules to block unauthorized privilege elevation attempts; restrict plugin access via network segmentation; enforce strict user role audits and multi-factor authentication; monitor authentication logs for anomalous account privilege changes; consider replacing the plugin with a patched alternative if available.

Threat Intelligence Overview

EPSS Score

0.1%

Top 73% exploitable

Exploit

POC

Public exploit code exists

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS POC (1)

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity CRITICAL

CISA KEV No

Public POC Yes

EPSS 0.1%

Patch available No

Active threat No

Deciding rule

CRITICAL severity + public POC available

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Out-of-Cycle

Exploitation· derived

Poc

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact

Very High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +49

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Privilege Escalation HIGH

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.