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:...

WordPress Simple Membership plugin < 4.7.5 - Unauthenticated Stored XSS via Stripe Webhook API Version vulnerability

Unauthenticated Stored XSS via Stripe Webhook API Version vulnerability discovered by Duy Tran in WordPress Plugin Simple Membership versions 4.7.5...

CVE-2026-74000

Contributor Broken Access Control in Simple Membership = 4.8.2 versions...

CVE-2026-74000 WordPress Simple Membership plugin <= 4.8.2 - Broken Access Control vulnerability

Contributor Broken Access Control in Simple Membership = 4.8.2 versions...

CVE-2026-74000 WordPress Simple Membership plugin <= 4.8.2 - Broken Access Control vulnerability

Contributor Broken Access Control in Simple Membership = 4.8.2 versions...

EUVD-2026-81514

Contributor Broken Access Control in Simple Membership = 4.8.2 versions...

CVE-2026-74000

CVE-2026-74000 affects the WordPress Simple Membership plugin in versions ≤ 4.8.2 . The vulnerability is a Broken Access Control flaw discovered by Ananda Dhakal (Patchstack). The CVSS 3.1 score is 5.3 (Medium) with the vector AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N , indicating a network-exploitable...

CVE-2026-74000: Missing Authorization

Contributor Broken Access Control in Simple Membership = 4.8.2 versions...

WordPress Simple Membership plugin <= 4.8.2 - Broken Access Control vulnerability

Broken Access Control vulnerability discovered by Ananda Dhakal Patchstack in WordPress Plugin Simple Membership versions = 4.8.2...

WordPress Simple Membership plugin < 4.7.8 - Subscriber+ Membership Level Escalation vulnerability

Subscriber+ Membership Level Escalation vulnerability discovered by Charles Vosburgh in WordPress Plugin Simple Membership versions 4.7.8...

CVE-2026-88764

The Simple Membership WordPress plugin before 4.7.8 does not validate that the membership level supplied in a PayPal payment notification matches the level configured for the paid payment button, allowing members to pay for a lower-priced membership while being granted a higher, more privileged...

CVE-2026-88764 Simple Membership < 4.7.8 - Subscriber+ Membership Level Escalation via PayPal Standard subsc_ref

The Simple Membership WordPress plugin before 4.7.8 does not validate that the membership level supplied in a PayPal payment notification matches the level configured for the paid payment button, allowing members to pay for a lower-priced membership while being granted a higher, more privileged...

EUVD-2026-76956

The Simple Membership WordPress plugin before 4.7.8 does not validate that the membership level supplied in a PayPal payment notification matches the level configured for the paid payment button, allowing members to pay for a lower-priced membership while being granted a higher, more privileged...

CVE-2026-88764 Simple Membership < 4.7.8 - Subscriber+ Membership Level Escalation via PayPal Standard subsc_ref

The Simple Membership WordPress plugin before 4.7.8 does not validate that the membership level supplied in a PayPal payment notification matches the level configured for the paid payment button, allowing members to pay for a lower-priced membership while being granted a higher, more privileged...

CVE-2026-88764

The Simple Membership WordPress plugin (versions before 4.7.8 ) contains a membership level escalation vulnerability. The flaw exists because the plugin fails to validate that the membership level provided in a PayPal payment notification matches the level configured for the specific paid payment...

PT-2026-90795

The Simple Membership WordPress plugin before 4.7.8 does not validate that the membership level supplied in a PayPal payment notification matches the level configured for the paid payment button, allowing members to pay for a lower-priced membership while being granted a higher, more privileged...

CVE-2026-88764: Improper Privilege Management

The Simple Membership WordPress plugin before 4.7.8 does not validate that the membership level supplied in a PayPal payment notification matches the level configured for the paid payment button, allowing members to pay for a lower-priced membership while being granted a higher, more privileged...

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 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,...