CVE-2026-1779
User Registration & Membership <= 5.1.2 - Authentication Bypass
highAuthentication Bypass Using an Alternate Path or Channel
8.1
CVSS Score
8.1
CVSS Score
high
Severity
5.1.3
Patched in
1d
Time to patch
Description
The User Registration & Membership plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 5.1.2. This is due to incorrect authentication in the 'register_member' function. This makes it possible for unauthenticated attackers to log in a newly registered user on the site who has the 'urm_user_just_created' user meta set.
CVSS Vector Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HAttack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
High
Confidentiality
High
Integrity
High
Availability
Technical Details
Affected versions
<=5.1.2PublishedFebruary 25, 2026
Last updatedFebruary 26, 2026
Affected pluginuser-registration
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