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Membership Plugin vulnerabilities
Membership Plugin has 8 known vulnerabilities in this database. The most recent published record is dated 5 Aug 2026.
- Known vulnerabilities
- 8
- Active installs
- 9,000+
- Latest version
- 4.0.4
- Last updated
- 17 Sep 2026
- Most recent
- 5 Aug 2026
Find it in your WordPress dashboard under Plugins. Severity is based on the CVSS score published with the CVE where one is available.
| Vulnerability | Severity | Affected | Fix | Published |
|---|---|---|---|---|
| Authentication bypass CVE-2026-9273 | Critical 9.3 | Up to 4.0.0 | Fixed in a later version (latest 4.0.4) | 5 Aug 2026 |
| Security weakness CVE-2026-4136 | Medium 4.3 | Up to 3.2.24 | Fixed in a later version (latest 4.0.4) | 20 Mar 2026 |
| Privilege escalation CVE-2026-1321 | High 8.1 | Up to 3.2.20 | Fixed in a later version (latest 4.0.4) | 5 Mar 2026 |
| Cross-site scripting (XSS) CVE-2026-1304 | Medium 4.4 | Up to 3.2.18 | Fixed in a later version (latest 4.0.4) | 18 Feb 2026 |
| Broken access control CVE-2025-14844 | High 8.2 | Before 3.2.17 | Fixed in 3.2.17 | 16 Jan 2026 |
| Cross-site scripting (XSS) CVE-2025-14000 | Medium 6.4 | Up to 3.2.15 | Fixed in a later version (latest 4.0.4) | 23 Dec 2025 |
| Sensitive data exposure CVE-2024-11090 | Medium 5.3 | Before 3.2.14 | Fixed in 3.2.14 | 26 Jan 2025 |
| Cross-site scripting (XSS) CVE-2023-3182 | Medium 6.1 | Before 3.2.3 | Fixed in 3.2.3 | 17 Jul 2023 |
Read the published descriptions
- CVE-2026-9273, 5 Aug 2026
- 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. CVE record
- CVE-2026-4136, 20 Mar 2026
- 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. CVE record
- CVE-2026-1321, 5 Mar 2026
- The Membership Plugin - Restrict Content plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 3.2.20. This is due to the `rcp_setup_registration_init()` function accepting any membership level ID via the `rcp_level` POST parameter without validating that the level is active or that payment is required. Combined with the `add_user_role()` method which assigns the WordPress role configured on the membership level without status checks, this makes it possible for unauthenticated attackers to register with any membership level, including inactive levels that grant privileged WordPress roles such as Administrator, or paid levels that charge a sign-up fee. The vulnerability was partially patched in version 3.2.18. CVE record
- CVE-2026-1304, 18 Feb 2026
- The Membership Plugin - Restrict Content for WordPress is vulnerable to Stored Cross-Site Scripting via multiple invoice settings fields in all versions up to, and including, 3.2.18 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. CVE record
- CVE-2025-14844, 16 Jan 2026
- The Membership Plugin - Restrict Content plugin for WordPress is vulnerable to Missing Authentication in all versions up to, and including, 3.2.16 via the 'rcp_stripe_create_setup_intent_for_saved_card' function due to missing capability check. Additionally, the plugin does not check a user-controlled key, which makes it possible for unauthenticated attackers to leak Stripe SetupIntent client_secret values for any membership. CVE record
- CVE-2025-14000, 23 Dec 2025
- The Membership Plugin - Restrict Content plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'register_form' and 'restrict' shortcodes in all versions up to, and including, 3.2.15 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. CVE record
- CVE-2024-11090, 26 Jan 2025
- The Membership Plugin - Restrict Content plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.2.13 via the WordPress core search feature. This makes it possible for unauthenticated attackers to extract sensitive data from posts that have been restricted to higher-level roles such as administrator. CVE record
- CVE-2023-3182, 17 Jul 2023
- The Membership WordPress plugin before 3.2.3 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin CVE record
What to do if you run Membership Plugin
If you run Membership Plugin, open WordPress and check the installed version in Plugins. Compare it with the affected versions in the vulnerability record. If a fixed version is available, take a current backup and update to that version or the latest supported release.
If no fixed version exists, consider disabling and removing the plugin or replacing it with a maintained alternative. After dealing with the affected software, check administrator users, unexpected file changes, redirects, unfamiliar pages and security logs for signs that the site may already have been altered.
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