Medium severity · published Mar 20, 2026
CVE-2026-4136
Membership Plugin – Restrict Content <= 3.2.24 - Unvalidated Redirect in Password Reset Flow via rcp_redirect
4.3
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 10% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MP
Membership Plugin – Restrict Content · stellarwp
through 3.2.24 · source: vendor
Affected product
MP
Membership Plugin – Restrict Content
stellarwp
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-4136
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-4136
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/restrict-content/tags/3.2.24/core/includes/login-functions.php#L270
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3486071/restrict-content
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/e4cf42d3-9864-440b-8357-36c82cbef28f?source=cve
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