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

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

CVE-2026-66712

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

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-2026-15931

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...

CVE-2026-15931 Simple Membership < 4.7.8 - Unauthenticated Stored XSS via PayPal Subscription Subscriber Name

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-2026-15931

The issue is CVE-2026-15931 affecting the Simple Membership WordPress plugin prior to version 4.7.8. The vulnerability arises because the plugin does not sanitize a subscriber name value sent via an unauthenticated payment approval request, and it also fails to escape this value when shown in the...

EUVD-2026-52176

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...

EUVD-2026-52175

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...

CVE-2026-15930

The CVE concerns the Simple Membership WordPress plugin prior to version 4.7.8. It does not verify whether user creation failed during registration before using the returned value as a user ID to update an account, enabling an unauthenticated attacker to overwrite the primary administrator’s acco...

CVE-2026-11855

The Simple Membership WordPress plugin before 4.7.5 does not verify the authenticity of Stripe webhook requests when no signing secret is configured, nor escape a value taken from them before outputting it in an administrator notice, allowing unauthenticated attackers to inject arbitrary web...

CVE-2026-11855

CVE-2026-11855 affects the Simple Membership WordPress plugin prior to 4.7.5. The issue arises because Stripe webhook requests are not authenticated when no signing secret is configured, and a value taken from those requests is not escaped before being output in an administrator notice. This lead...

CVE-2026-11855 Simple Membership < 4.7.5 - Unauthenticated Stored XSS via Stripe Webhook API Version

The Simple Membership WordPress plugin before 4.7.5 does not verify the authenticity of Stripe webhook requests when no signing secret is configured, nor escape a value taken from them before outputting it in an administrator notice, allowing unauthenticated attackers to inject arbitrary web...

CVE-2026-12093

The Simple Membership plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.7.5. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to deactivate arbitra...

EUVD-2026-37847

The Simple Membership plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.7.5. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to deactivate arbitra...

CVE-2026-12093

The CVE-2026-12093 entry concerns the WordPress Simple Membership plugin (versions up to and including 4.7.5). The root cause is missing authorization verification, enabling unauthenticated attackers to deactivate arbitrary member accounts by forging a charge.refunded Stripe webhook with a victim...