PT-2026-22112 · WordPress · User Registration & Membership

Jude Nwadinobi · Published 2026-02-26 · Updated 2026-03-03 · CVE-2026-1779

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions User Registration & Membership plugin for WordPress versions up to and including 5.1.2

Description The User Registration & Membership plugin for WordPress is affected by an authentication bypass. This is caused by incorrect authentication in the register member function. An unauthenticated attacker can log in as a newly registered user if that user has the urm user just created user meta set.

Recommendations Update the User Registration & Membership plugin to a version newer than 5.1.2.

Fix

Authentication Bypass Using an Alternate Path or Channel

Weakness Enumeration

CWE-288

Related Identifiers

CVE-2026-1779

Affected Products

User Registration & Membership

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2026-1779 · Security Note
• https://t.me/CVEtracker/45820 · Telegram Post
• https://plugins.trac.wordpress.org/browser/user-registration/tags/5.0.4/modules/membership/includes/AJAX.php#L246 · Note
• https://twitter.com/cracbot/status/2028787651361509586 · Twitter Post
• https://wordfence.com/threat-intel/vulnerabilities/id/d99bc021-ba9e-4294-8dd2-c25bc8007d05?source=cve · Note
• https://twitter.com/CVEnew/status/2027004202736640249 · Twitter Post
• https://twitter.com/CveTodo/status/2026861867495199011 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2026939707364389073 · Twitter Post