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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.

PUBLISHED Reserved 2026-02-02 | Published 2026-02-26 | Updated 2026-02-26 | Assigner Wordfence




HIGH: 8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

CWE-288 Authentication Bypass Using an Alternate Path or Channel

Product status

Default status
unaffected

* (semver)
affected

Timeline

2026-02-02:Vendor Notified
2026-02-25:Disclosed

Credits

Jude Nwadinobi finder

References

www.wordfence.com/...-ba9e-4294-8dd2-c25bc8007d05?source=cve

plugins.trac.wordpress.org/...s/membership/includes/AJAX.php

cve.org (CVE-2026-1779)

nvd.nist.gov (CVE-2026-1779)

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