Membership Plugin – Kadence Memberships <= 4.0.0 — Unauthenticated Password Reset Link Poisoning to Account Takeover
CVE-2026-9273Published · Updated Action summary
Affected: ≤4.0.0Update to 4.0.1 or newer
All remediation steps- Severity
- Critical9.3
- CVSS
- 9.3CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:RUser interaction- Required
S:CScope- Changed
C:HConfidentiality- High
I:HIntegrity- High
A:NAvailability- None
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Membership Plugin – Kadence Memberships restrict-content
- Affected≤ 4.0.0
- Patched in4.0.1
Update to 4.0.1 or newer.
You are affected if you run ≤ 4.0.0. Version 4.0.1 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Membership Plugin – Kadence Memberships.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 4.0.1, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Membership Plugin – Kadence Memberships to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to scort.
The Membership Plugin – Kadence Memberships plugin for WordPress (formerly Restrict Content) is vulnerable to password reset link poisoning leading to account takeover in all versions up to, and including, 4.0.0. This is due to the legacy lost-password handler rc_process_lost_password_form() consuming the attacker-controlled rc_redirect POST parameter into two unvalidated sinks in legacy/includes/forms.php: wp_redirect( esc_url( $_POST['rc_redirect'] ) . ... ) at line 243, and add_query_arg( array( 'key' => $key, 'login' => ... ), $_POST['rc_redirect'] ) inside rc_send_password_reset_email() at line 306. The nonce required to reach the handler is broadcast by the public [login_form] shortcode at line 207 to any anonymous visitor. This makes it possible for unauthenticated attackers to issue a password-reset request for any account (including administrators) whose reset email body points the victim at an attacker-controlled host carrying a valid reset key/login. When the victim clicks the link, the reset key leaks to the attacker, who can replay it against the legitimate site to complete account takeover.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Membership Plugin – Kadence Memberships
All 12| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium5.3 | Missing Authorization ≤3.2.22Update to 3.2.23 | CVE-2026-32546 | |
| Medium4.3 | Unvalidated Redirect in Password Reset Flow via rcp_redirect ≤3.2.24Update to 3.2.25 | CVE-2026-4136 | |
| High8.1 | Unauthenticated Privilege Escalation via 'rcp_level' ≤3.2.20Update to 3.2.21 | CVE-2026-1321 | |
| Medium4.4 | Authenticated (Administrator+) Stored Cross-Site Scripting via Invoice Settings ≤3.2.18Update to 3.2.19 | CVE-2026-1304 | |
| High8.2 | Missing Authentication to Insecure Direct Object Reference and Sensitive Information Exposure ≤3.2.16Update to 3.2.17 | CVE-2025-14844 |
- Medium5.3Missing Authorization
≤3.2.22Update to 3.2.23
- Medium4.3Unvalidated Redirect in Password Reset Flow via rcp_redirect
≤3.2.24Update to 3.2.25
- High8.1Unauthenticated Privilege Escalation via 'rcp_level'
≤3.2.20Update to 3.2.21
- Medium4.4Authenticated (Administrator+) Stored Cross-Site Scripting via Invoice Settings
≤3.2.18Update to 3.2.19
- High8.2Missing Authentication to Insecure Direct Object Reference and Sensitive Information Exposure
≤3.2.16Update to 3.2.17
Timeline
CVE published
Severity critical, CVSS 9.3
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.