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Vulnerability Intelligence

CVE-2026-1492

CriticalExploited

User Registration & Membership <= 5.1.2 - Unauthenticated Privilege Escalation via Membership Registration

Published Mar 3, 2026 · Updated Apr 8, 2026 · Also known as 7e9fec92-f471-4ce9-9138-1c58ad658da2

Key Facts

Patch immediately
  • CVE-2026-1492 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting user-registration (wordpress-plugin), User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder.
  • It is exploited in the wild, listed in Industry KEV feed since Mar 2, 2026. No public exploit code is known.
  • EPSS estimates a 28% probability of exploitation in the next 30 days.
  • Fixed versions are available, including user-registration 5.1.3.
  • Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

9.8

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

EPSS (30-day exploit likelihood)

28%

Higher than 98.0% of all scored CVEs

Exploited in the wild

Yes

1 catalog listing

Public exploit code

None known

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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.

Known-Exploited Catalog Listings

CatalogAddedRemediation dueRansomware use
Industry KEV feedMar 2, 2026n/aNot reported

Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Affected Products

2 affected entries in total
ProductAffected versionsFixed in
user-registrationwordpress-pluginSee advisory5.1.3
User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login BuilderSee advisoryn/a

Patched Releases

user-registration

5.1.3

Timeline

  1. Added to Industry KEV feed

    Mar 2, 2026

  2. Publicly disclosed

    Mar 3, 2026

  3. Last updated

    Apr 8, 2026

Weakness Type

  • CWE-269 Improper Privilege Management

References

FAQ

Common Questions.

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