User Registration & Membership <= 5.1.4 - Missing Authorization to Authenticated (Contributor+) Content Access Rule Manipulation
| CVE | CVE-2026-4056 |
|---|---|
| CVSS | 5.4 (Medium) |
| Publicly Published | March 23, 2026 |
| Last Updated | March 23, 2026 |
| Researcher |
normaandersonfrank
|
Description
The User Registration & Membership plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the Content Access Rules REST API endpoints in versions 5.0.1 through 5.1.4. This is due to the `check_permissions()` method only checking for `edit_posts` capability instead of an administrator-level capability. This makes it possible for authenticated attackers, with Contributor-level access and above, to list, create, modify, toggle, duplicate, and delete site-wide content restriction rules, potentially exposing restricted content or denying legitimate user access.
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Vulnerability Details for User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder
| Software Type | Plugin |
|---|---|
| Software Slug | user-registration (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 5.1.5, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder
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