PT-2026-26554 · Stellarwp · Membership Plugin – Restrict Content

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

Mitre

CVSS v3.1

4.3

Medium

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

The Membership Plugin – Restrict Content plugin for WordPress is vulnerable to Unvalidated Redirect in all versions up to, and including, 3.2.24. This is due to insufficient validation on the redirect url supplied via the 'rcp redirect' parameter. This makes it possible for unauthenticated attackers to redirect users with the password reset email to potentially malicious sites if they can successfully trick them into performing an action.

Fix

Weakness Enumeration

CWE-640

Related Identifiers

CVE-2026-4136

Affected Products

Membership Plugin – Restrict Content

References · 4

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