CVE-2026-9273
CVE-2026-9273 — Membership Plugin – Kadence Memberships <= 4.0.0 - Unauthenticated Password Reset Link Poisoning to Account Takeover
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…
Published Updated Sources: cvelistV5, Wordfence
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the scoring sources call it.
Exploitation
Unreported
no source claims exploitation
EPSS
0%
chance of exploitation in 30 days
CVSS base
9.3
CRITICAL
CISA SSVC assessment
Three decision points CISA publishes for the CVEs it assesses · SSVC 2.0.3. A stakeholder decision, not a severity score.
Exploitation
None
none · proof-of-concept · active
Automatable
No
can an attacker script all four kill-chain steps
Technical impact
Total
partial · total control of the vulnerable component
Affected scope
The catalog records vendors and products as separate lists, not pairs, so which product belongs to which vendor is not something this page can say.
Vendors (1)
Products (1)
Every base score collected
Sources score independently and disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Source |
|---|---|---|---|---|---|
| 9.3 | CVSS 3.1 | CRITICAL | — | — | cvelistV5 |
Weakness & attack patterns
- CWE-640
Detection
Read off the CVSS vector and the weakness class. Starting points, not rules we have tested.
- Search application, proxy, and WAF logs for requests touching /includes/forms.php.
References
7 on the record
- www.wordfence.com/threat-intel/vulnerabilities/id/ca38c423-2df8-4f20-bd95-2ecd84167a7f?source=cve
reference
- plugins.trac.wordpress.org/browser/restrict-content/tags/4.0.0/legacy/includes/forms.php#L243
reference
- plugins.trac.wordpress.org/browser/restrict-content/tags/4.0.0/legacy/includes/forms.php#L306
reference
- plugins.trac.wordpress.org/browser/restrict-content/tags/4.0.0/legacy/includes/forms.php#L207
reference
- plugins.trac.wordpress.org/browser/restrict-content/trunk/legacy/includes/forms.php#L243
reference
- plugins.trac.wordpress.org/browser/restrict-content/trunk/legacy/includes/forms.php#L306
reference
- plugins.trac.wordpress.org/changeset?new=3549742%40restrict-content%2Ftags%2F4.0.1&old=3529319%40restrict-content%2Ftags%2F4.0.0
reference
Elsewhere on this site
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.