PT-2026-31292 · WordPress · User Registration & Membership+1

Athiwat Tiprasaharn + 1 · Published 2026-04-08 · Updated 2026-04-12 · CVE-2026-1865

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions The User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder plugin for WordPress versions up to and including 5.1.2

Description The User Registration & Membership plugin for WordPress is susceptible to SQL Injection via the membership ids[] parameter. Insufficient input sanitization and inadequate SQL query preparation allow authenticated attackers with Subscriber-level access or higher to inject additional SQL queries, potentially leading to the extraction of sensitive database information.

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

Fix

SQL injection

Weakness Enumeration

CWE-89

Related Identifiers

CVE-2026-1865

Affected Products

User Registration & Membership

Wordpress

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-1865 · Security Note
• https://t.me/CVEtracker/50048 · Telegram Post
• https://t.me/cveNotify/158442 · Telegram Post
• https://twitter.com/CVEnew/status/2043295674221969603 · Twitter Post
• https://wordfence.com/threat-intel/vulnerabilities/id/07c79459-66b8-4c93-a1cd-6e3ede95643f?source=cve · Note
• https://plugins.trac.wordpress.org/changeset/3469042/user-registration · Note