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

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

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.

AnalysisAI

Privilege escalation in User Registration & Membership WordPress plugin.

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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

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 AssessmentAI

Exploitation	WordPress site with User Registration & Membership Plugin version 5.1.2 or earlier installed and activated with membership registration form enabled. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	CVSS 9.8. Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	Escalate to admin via registration.
Remediation	Update plugin. Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

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. …

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-1492 vulnerability details – vuln.today

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WordPress CVE-2026-1492

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Unlock full vulnerability intelligence

Attack ChainAIDerived

Vulnerability AssessmentAI

Recommended ActionAI

More from same product – last 7 days

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External POC / Exploit Code