Unvalidated Redirect Vulnerability in Membership Plugin - Restrict Content for WordPress
CVE-2026-4136

4.3MEDIUM

Key Information:

Vendor

WordPress
Status
Membership Plugin – Restrict Content
Vendor
CVE Published:
20 March 2026

What is CVE-2026-4136?

The Membership Plugin – Restrict Content for WordPress contains a vulnerability allowing unvalidated redirects via the 'rcp_redirect' parameter. Attackers can exploit this weakness in all versions up to and including 3.2.24. By tricking users into clicking malicious links, they can redirect users of the password reset functionality to harmful websites, posing a significant risk to user data and security.

Affected Version(s)

Membership Plugin – Restrict Content 0 <= 3.2.24

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/restrict-conte...
https://plugins.trac.wordpress.org/changeset/3486071/rest...

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Supakiad S.
.