CVE-2026-2356 Details
Description
The User Registration & Membership – Custom Registration Form, Login Form, and User Profile plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.1.2 via the 'register_member' function, due to missing validation on the 'member_id' user controlled key. This makes it possible for unauthenticated attackers to delete arbitrary user accounts that newly registered on the site who has the 'urm_user_just_created' user meta set.
A vulnerability exists in the User Registration & Membership WordPress plugin, specifically in versions through 5.1.2. The issue arises from an Insecure Direct Object Reference (IDOR) in the 'register_member' function, where the 'member_id' key, controlled by the user, lacks proper validation. This flaw enables unauthenticated attackers to delete user accounts of individuals who have recently registered and possess the 'urm_user_just_created' user meta.
Users can update to version 5.1.3 or a newer patched version to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Feb 26, 2026CISA-ADP
Assessed Feb 26, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-284 | Improper Access Control | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| WPEverest User Registration & Membership | <= 5.1.2 (semver) |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Feb 26, 2026 | New CVE Received | [email protected] |