CVE-2026-9273
Membership Plugin – Kadence Memberships <= 4.0.0 - Unauthenticated Password Reset Link Poisoning to Account Takeover
- Published
- Updated
- Reserved
- Assigned by
- Wordfence
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | Critical9.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N |
| NVDNVD · Deferred | 3.1 | Critical9.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N |
- EPSS (exploitation in 30 days)
- 0.51% · top 56% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.3.
Weakness
Affected products
stellarwp · Membership Plugin – Kadence Memberships
- affected ≤ 4.0.0
References (7)
- https://www.wordfence.com/threat-intel/vulnerabilities/id/ca38c423-2df8-4f20-bd95-2ecd84167a7f?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/restrict-content/tags/4.0.0/legacy/includes/forms.php#L243 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/restrict-content/tags/4.0.0/legacy/includes/forms.php#L306 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/restrict-content/tags/4.0.0/legacy/includes/forms.php#L207 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/restrict-content/trunk/legacy/includes/forms.php#L243 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/restrict-content/trunk/legacy/includes/forms.php#L306 (opens in a new tab)
- https://plugins.trac.wordpress.org/changeset?new=3549742%40restrict-content%2Ftags%2F4.0.1&old=3529319%40restrict-content%2Ftags%2F4.0.0 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-9273)Record last updated .