CVE-2026-86407

The User Registration & Membership WordPress plugin before 5.2.8 does not verify that the visitor requesting its membership confirmation page owns the account named in the request, nor that any registration or purchase has taken place, allowing unauthenticated users to retrieve another user's ema...

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-2026-86407 User Registration & Membership < 5.2.8 - Unauthenticated User Data Disclosure via Membership Thank You Page

The User Registration & Membership WordPress plugin before 5.2.8 does not verify that the visitor requesting its membership confirmation page owns the account named in the request, nor that any registration or purchase has taken place, allowing unauthenticated users to retrieve another user's ema...

CVE-2026-80072

The User Registration & Membership WordPress plugin before 5.2.8 fails to validate the destination of a post-login redirect, enabling unauthenticated attackers to send visitors to an arbitrary external URL. This open redirect vulnerability can be leveraged for phishing , luring users to a malicio...

CVE-2026-86406 User Registration & Membership < 5.2.8 - Subscriber+ Privilege Escalation via Membership Purchase

The User Registration & Membership WordPress plugin before 5.2.8 does not check the capability of the user making a membership purchase, and does not validate the payment method or the plan submitted with it, allowing any authenticated user such as a subscriber to be granted the WordPress role...

CVE-2026-86406

The User Registration & Membership WordPress plugin (versions before 5.2.8 ) fails to check the capability of the user initiating a membership purchase and does not validate the submitted payment method or plan. This allows any authenticated user at the subscriber level to receive the WordPress r...

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...

EUVD-2026-76955

The User Registration & Membership WordPress plugin before 5.2.8 does not verify that the visitor requesting its membership confirmation page owns the account named in the request, nor that any registration or purchase has taken place, allowing unauthenticated users to retrieve another user's ema...

EUVD-2026-76954

The User Registration & Membership WordPress plugin before 5.2.8 does not check the capability of the user making a membership purchase, and does not validate the payment method or the plan submitted with it, allowing any authenticated user such as a subscriber to be granted the WordPress role...

CVE-2026-86407

The User Registration & Membership WordPress plugin before 5.2.8 fails to verify that a visitor requesting its membership confirmation (thank you) page actually owns the account named in the request or that any registration/purchase occurred. This allows unauthenticated users to retrieve another ...

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

Simple Membership is a WordPress plugin that manages paid membership levels via PayPal. Versions before 4.7.8 fail to validate that the membership level specified in a PayPal Standard payment notification (via the subsc_ref parameter) matches the level configured for the paid payment button. An a...

EUVD-2026-76953

The User Registration & Membership WordPress plugin before 5.2.8 does not validate the destination of a post-login redirect before redirecting, allowing unauthenticated attackers to redirect visitors to an arbitrary external URL, which can be abused for phishing...

CVE-2026-80071 User Registration & Membership < 5.2.8 - Author+ Privilege Escalation to Administrator

The User Registration & Membership WordPress plugin before 5.2.8 does not properly restrict who may author a membership plan or validate the plan a user attaches to their own account, allowing authenticated users with Author-level access and above to assign themselves an arbitrary role and escala...

EUVD-2026-76952

The User Registration & Membership WordPress plugin before 5.2.8 does not properly restrict who may author a membership plan or validate the plan a user attaches to their own account, allowing authenticated users with Author-level access and above to assign themselves an arbitrary role and escala...

CVE-2026-80071 User Registration & Membership < 5.2.8 - Author+ Privilege Escalation to Administrator

The User Registration & Membership WordPress plugin before 5.2.8 does not properly restrict who may author a membership plan or validate the plan a user attaches to their own account, allowing authenticated users with Author-level access and above to assign themselves an arbitrary role and escala...

PT-2026-90791

The User Registration & Membership WordPress plugin before 5.2.8 does not properly restrict who may author a membership plan or validate the plan a user attaches to their own account, allowing authenticated users with Author-level access and above to assign themselves an arbitrary role and escala...

CVE-2026-84099

The wpstorecart WordPress plugin (IDB Ecommerce / wpStoreCart 5), versions through 5.0.7 , is vulnerable to unauthenticated PHP object injection via a bundled add-on. The vulnerable endpoint is the wpsc-membership-pro paypal.php file, which deserializes user-supplied input without restricting per...

WordPress WP-Members Membership Plugin plugin <= 3.5.6 - Reflected Cross-Site Scripting vulnerability

Reflected Cross-Site Scripting vulnerability discovered by Kuba in WordPress Plugin WP-Members versions = 3.5.6...

CVE-2026-84960 WP-Members Membership Plugin <= 3.5.6 - Reflected Cross-Site Scripting

The WP-Members Membership Plugin plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via URL Query String in all versions up to, and including, 3.5.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitra...