CVE-2026-2363: WP-Members Membership Plugin <= 3.5.5.1 - Authenticated (Contributor+) SQL Injection via 'order_by' Shortcode Attribute
The WP-Members Membership Plugin plugin for WordPress is vulnerable to SQL Injection via the 'orderby' attribute of the [wpmemusermembershipposts] shortcode in all versions up to, and including, 3.5.5.1. This is due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with Contributor-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-2363?
CVE-2026-2363 is classified as a critical severity SQL Injection vulnerability.
How do I fix CVE-2026-2363?
To fix CVE-2026-2363, update the WP-Members Membership Plugin to version 3.5.5.2 or higher.
What systems are affected by CVE-2026-2363?
CVE-2026-2363 affects the WP-Members Membership Plugin for WordPress versions up to and including 3.5.5.1.
What type of attack can CVE-2026-2363 facilitate?
CVE-2026-2363 can facilitate authenticated SQL Injection attacks through the 'order_by' attribute in the shortcode.
Who is at risk from CVE-2026-2363?
Site administrators and users with Contributor+ privileges on WordPress sites using the vulnerable plugin are at risk from CVE-2026-2363.