ProfilePress – Paid Membership, Online Courses (LMS), Ecommerce, User Registration & Login Form, User Profile & Restrict Content <= 4.18.0 - Unauthenticated Arbitrary Shortcode Execution via Member Directory Search Term

ID

WPSEC-2026-3089

Plugin

ProfilePress – Paid Membership, Online Courses (LMS), Ecommerce, User Registration & Login Form, User Profile & Restrict Content (wp-user-avatar)

Affected

from 3.0 before 4.18.1

Remediation

Update to 4.18.1 or later.

CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Weakness

CWE-94

Usage

Plugin High · Affected versions High among sites WPSec scans, 2026-11-13

Attack surface

ProfilePress – Paid Membership, Online Courses (LMS), Ecommerce, User Registration & Login Form, User Profile & Restrict Content on WPSec AttackSurface

Fix released

2026-11-12

Published

2026-11-13

Description

The Paid Membership, Online Courses (LMS), Ecommerce, User Registration & Login Form, User Profile & Restrict Content plugin for WordPress is vulnerable to arbitrary shortcode execution via the drag-and-drop member directory search term in all versions up to, and including, 4.18.0. This is due to the search term from the 'filter<ID>' query parameter being reflected into the directory's search field, which is HTML-escaped but does not have its shortcode brackets neutralized, before the assembled directory markup is passed through do_shortcode(). This makes it possible for unauthenticated attackers to execute arbitrary shortcodes on the site.

References

• https://wpsec.com/vuln/WPSEC-2026-3089/
• https://plugins.svn.wordpress.org/wp-user-avatar/tags/4.18.1/
• https://wordpress.org/plugins/wp-user-avatar/

Published by WPSec. Provided as is, without warranty. Corrections: contact us.

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