Medium severity · published May 14, 2026
CVE-2026-6145
User Registration & Membership <= 5.1.5 - Unauthenticated Missing Authorization to Admin Approval Bypass via 'action' Parameter
5.3
CVSS
0.4%
EPSS
No
On KEV
Description
The User Registration & Membership plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 5.1.5. This is due to the is_admin_creation_process() method relying solely on the presence of action=createuser in the $_REQUEST superglobal without performing any authentication or capability check. This makes it possible for unauthenticated attackers to bypass the admin approval requirement when registering new accounts via the fallback submission path.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 39% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
Affected product
UR
User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder
wpeverest
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-6145
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-6145
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3516468/user-registration/trunk/includes/class-ur-user-approval.php
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/b6b349f2-24c9-4921-bb5f-a7726ebc5c2a?source=cve
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