stellarwp Membership Plugin up to 3.2.24 on WordPress rcp_redirect password recovery

Summaryinfo

A vulnerability classified as critical has been found in stellarwp Membership Plugin up to 3.2.24 on WordPress. This vulnerability affects unknown code. This manipulation of the argument rcp_redirect causes password recovery. This vulnerability is registered as CVE-2026-4136. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in stellarwp Membership Plugin up to 3.2.24 on WordPress and classified as critical. Affected by this vulnerability is some unknown processing. The manipulation of the argument rcp_redirect with an unknown input leads to a password recovery vulnerability. The CWE definition for the vulnerability is CWE-640. The product contains a mechanism for users to recover or change their passwords without knowing the original password, but the mechanism is weak. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was published by Supakiad S.. The advisory is shared at wordfence.com. This vulnerability is known as CVE-2026-4136 since 03/13/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1552 for this issue.

Upgrading to version 3.2.24 eliminates this vulnerability.

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Productinfo

Type

• WordPress Plugin

Vendor

• stellarwp

Name

• Membership Plugin

Version

• 3.2.0
• 3.2.1
• 3.2.2
• 3.2.3
• 3.2.4
• 3.2.5
• 3.2.6
• 3.2.7
• 3.2.8
• 3.2.9
• 3.2.10
• 3.2.11
• 3.2.12
• 3.2.13
• 3.2.14
• 3.2.15
• 3.2.16
• 3.2.17
• 3.2.18
• 3.2.19
• 3.2.20
• 3.2.21
• 3.2.22
• 3.2.23
• 3.2.24

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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