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Findings

CVE-2026-1321

The Membership Plugin – Restrict Content plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 3.2.20.

Published Mar 5, 2026 · updated Jun 17, 2026

The Membership Plugin – Restrict Content plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 3.2.20. This is due to the function accepting any membership level ID via the POST parameter without validating that the level is active or that payment is required. Combined with the method which assigns the WordPress role configured on the membership level without status checks, this makes it possible for unauthenticated attackers to register with any membership level, including inactive levels that grant privileged WordPress roles such as Administrator, or paid levels that charge a sign-up fee. The vulnerability was partially patched in version 3.2.18.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 5, 2026 · NIST NVD

    Detected

    The Membership Plugin – Restrict Content plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 3.2.20. This is due to the function accepting any membership level ID via the POST parameter without validating that the level is active or that payment is required. Combined with the method which assigns the WordPress role configured on the membership level wit

  2. Jun 17, 2026 · NIST NVD

    Updated

    The Membership Plugin – Restrict Content plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 3.2.20. This is due to the function accepting any membership level ID via the POST parameter without validating that the level is active or that payment is required. Combined with the method which assigns the WordPress role configured on the membership level wit

Sources

  • CVE.orgVulnerability recordCVE-2026-1321

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-1321

    The Membership Plugin – Restrict Content plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 3.2.20. This is due to the function accepting any membership level ID via the POST parameter witho

    nvd.nist.gov

References