PT-2026-26554 · WordPress · Restrict Content

Supakiad S · CVE-2026-4136 · Published 2026-03-20 · Updated 2026-03-20

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Membership Plugin – Restrict Content versions prior to 3.2.24

Description The Membership Plugin – Restrict Content plugin for WordPress is susceptible to an unvalidated redirect issue in all versions up to and including 3.2.24. This occurs because of inadequate validation of the redirect URL provided through the rcp redirect parameter. An unauthenticated attacker can potentially redirect users who have requested a password reset email to malicious websites if they can trick the user into performing an action.

Recommendations Versions prior to 3.2.24 should be updated to version 3.2.24 or later.

Fix

Weakness Enumeration

CWE-640

Related Identifiers

CVE-2026-4136

Affected Products

Restrict Content

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-4136 · Security Note
• https://twitter.com/VulmonFeeds/status/2034854365417156614 · Twitter Post
• https://plugins.trac.wordpress.org/changeset/3486071/restrict-content · Note
• https://twitter.com/CVEnew/status/2034891570474864711 · Twitter Post
• https://wordfence.com/threat-intel/vulnerabilities/id/e4cf42d3-9864-440b-8357-36c82cbef28f?source=cve · Note
• https://plugins.trac.wordpress.org/browser/restrict-content/tags/3.2.24/core/includes/login-functions.php#L270 · Note