WordPress Simple Membership <4.1.1 - Cross-Site Scripting

WordPress Simple Membership plugin before 4.1.1 contains a reflected cross-site scripting vulnerability. It does not properly sanitize and escape parameters before outputting them back in AJAX actions. id: CVE-2022-1724 info: name: WordPress Simple Membership 4.1.1 - Cross-Site Scripting author:...

CVE-2026-8151

The Simple Membership MailChimp Integration WordPress plugin before 1.9.8 does not have CSRF checks in its settings page, allowing attackers to trick a logged-in administrator into changing the configured third-party API key. Once replaced, all subsequent member registration data name, email,...

CVE-2026-8151 Simple Membership MailChimp Integration < 1.9.8 - API Key Update via CSRF

The Simple Membership MailChimp Integration WordPress plugin before 1.9.8 does not have CSRF checks in its settings page, allowing attackers to trick a logged-in administrator into changing the configured third-party API key. Once replaced, all subsequent member registration data name, email,...

CVE-2026-8151

The Simple Membership MailChimp Integration WordPress plugin before 1.9.8 lacks CSRF protection on its settings page. An attacker can craft a request that, when submitted by a logged-in administrator , silently replaces the configured MailChimp API key. Once swapped, all subsequent member registr...

CVE-2026-8151 Simple Membership MailChimp Integration < 1.9.8 - API Key Update via CSRF

The Simple Membership MailChimp Integration WordPress plugin before 1.9.8 does not have CSRF checks in its settings page, allowing attackers to trick a logged-in administrator into changing the configured third-party API key. Once replaced, all subsequent member registration data name, email,...

EUVD-2026-70043

The Simple Membership MailChimp Integration WordPress plugin before 1.9.8 does not have CSRF checks in its settings page, allowing attackers to trick a logged-in administrator into changing the configured third-party API key. Once replaced, all subsequent member registration data name, email,...

CVE-2026-77194

The Simple Membership plugin for WordPress is vulnerable to Authentication Bypass leading to Administrator Account Takeover in versions up to, and including, 4.8.0. This is due to improper identity verification during the public registration flow in WordPress Multisite environments, where the...

CVE-2026-77194 Simple Membership <= 4.8.1 - Unauthenticated Authentication Bypass to Administrator Account Takeover via Multisite Identity Binding

The Simple Membership plugin for WordPress is vulnerable to Authentication Bypass leading to Administrator Account Takeover in versions up to, and including, 4.8.0. This is due to improper identity verification during the public registration flow in WordPress Multisite environments, where the...

EUVD-2026-69022

The Simple Membership plugin for WordPress is vulnerable to Authentication Bypass leading to Administrator Account Takeover in versions up to, and including, 4.8.0. This is due to improper identity verification during the public registration flow in WordPress Multisite environments, where the...

CVE-2026-77194

The Simple Membership WordPress plugin (versions up to 4.8.0 , with a partial fix in 4.8.1) is affected by an unauthenticated Authentication Bypass that can lead to Administrator Account Takeover in WordPress Multisite environments. The root cause is improper identity verification during the publ...

WordPress Simple Membership plugin <= 4.8.1 - Unauthenticated Authentication Bypass to Administrator Account Takeover via Multisite Identity Binding vulnerability

Unauthenticated Authentication Bypass to Administrator Account Takeover via Multisite Identity Binding vulnerability discovered by Kittipat Jitphonchana in WordPress Plugin Simple Membership versions = 4.8.1...

WordPress Simple Membership plugin < 4.7.8 - Unauthenticated Stored XSS via PayPal Subscription Subscriber Name vulnerability

Unauthenticated Stored XSS via PayPal Subscription Subscriber Name vulnerability discovered by Yaswanth Reddy Sunkara in WordPress Plugin Simple Membership versions 4.7.8...

EUVD-2026-54193

The Simple Membership WordPress plugin before 4.7.7 does not verify that a PayPal payment notification was sent to the site's own configured merchant account before activating a membership, allowing unauthenticated users to activate or extend a membership using a payment made to an arbitrary PayP...

CVE-2026-14936

The CVE concerns the Simple Membership WordPress plugin prior to version 4.7.7, where PayPal IPN verification is not performed against the site’s configured merchant account before activating a membership. This allows unauthenticated users to activate or extend memberships using PayPal payments t...

CVE-2026-66712

Unauthenticated Broken Access Control in Simple Membership = 4.7.8 versions...

EUVD-2026-53937

Unauthenticated Broken Access Control in Simple Membership = 4.7.8 versions...

CVE-2026-66712

CVE-2026-66712 affects the WordPress plugin Simple Membership versions

CVE-2026-66712 WordPress Simple Membership plugin <= 4.7.8 - Broken Access Control vulnerability

Unauthenticated Broken Access Control in Simple Membership = 4.7.8 versions...

CVE-2026-15931

The Simple Membership WordPress plugin before 4.7.8 does not sanitise a subscriber name value received from an unauthenticated payment approval request, nor escape it when displaying it in the administration dashboard, allowing unauthenticated attackers to store arbitrary JavaScript that executes...

CVE-2026-15930

The Simple Membership WordPress plugin before 4.7.8 does not verify whether user creation failed during registration before using the returned value as a user ID to update an account, allowing unauthenticated attackers to overwrite the primary administrator's account data including the email...