CVE-2026-4136 Membership Plugin – Restrict Content <= 3.2.24 - Unvalidated Redirect in Password Reset Flow via rcp_redirect
Unauthenticated attackers can redirect users to malicious sites via the password reset flow in the Restrict Content plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-4136?
CVE-2026-4136 is a medium-severity vulnerability in stellarwp Membership Plugin – Restrict Content, published on 20 Mar 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-640
Which versions are affected by CVE-2026-4136?
How do I fix CVE-2026-4136?
No fix has been published for CVE-2026-4136 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-4136 being exploited?
There is no known exploitation of CVE-2026-4136 in the wild and no public exploit code.
Sources
Also known as GHSA-434r-hj47-rpjj.