Accept Donations with PayPal <= 1.5.2 - Open Redirect

The Accept Donations with PayPal & Stripe plugin for WordPress is vulnerable to Open Redirect in all versions up to, and including, 1.5.2. This is due to insufficient validation on the redirect url supplied. This makes it possible for unauthenticated attackers to redirect users to potentially...

CVE-2026-19804

The s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 260814 via the 'firstname' parameter parameter. This is due to insufficient...

CVE-2026-89426

The Knit Pay – Cashfree, Instamojo, Razorpay, PayPal and more plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 9.6.1.0. This is due to the maybeupdateuserrole function reading the target role directly from an attacker-controlled Gravity Forms entry...

EUVD-2026-86579

The Knit Pay – Cashfree, Instamojo, Razorpay, PayPal and more plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 9.6.1.0. This is due to the maybeupdateuserrole function reading the target role directly from an attacker-controlled Gravity Forms entry...

CVE-2026-89426

The Knit Pay WordPress plugin (versions up to and including 9.6.1.0 ) is vulnerable to Privilege Escalation . The root cause is the maybe_update_user_role() function, which reads a target role directly from an attacker-controlled Gravity Forms entry field (via user_role_field_id) and passes it to...

CVE-2026-19804 s2Member <= 260814 - Unauthenticated Remote Code Execution via 'first_name' Parameter in PayPal Proxy Return

The s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 260814 via the 'firstname' parameter parameter. This is due to insufficient...

EUVD-2026-86577

The s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 260814 via the 'firstname' parameter parameter. This is due to insufficient...

CVE-2026-89426 Knit Pay <= 9.6.1.0 - Authenticated (Subscriber+) Privilege Escalation via Gravity Forms Role Field

The Knit Pay – Cashfree, Instamojo, Razorpay, PayPal and more plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 9.6.1.0. This is due to the maybeupdateuserrole function reading the target role directly from an attacker-controlled Gravity Forms entry...

CVE-2026-19804 s2Member <= 260814 - Unauthenticated Remote Code Execution via 'first_name' Parameter in PayPal Proxy Return

The s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 260814 via the 'firstname' parameter parameter. This is due to insufficient...

CVE-2026-19804

The s2Member plugin for WordPress (versions up to and including 260814 ) is vulnerable to Remote Code Execution (RCE) . The root cause is insufficient sanitization of the first_name parameter using esc_refs(), which fails to strip PHP tags before they are substituted into an eval'd Signup Trackin...

CVE-2026-73314

CVE-2026-73314: Unsupported PayPal signature algorithm accepted XenForo before 2.3.13 fails open when a PayPal REST webhook names an unsupported signature algorithm. What happens The webhook handler maps PAYPAL-AUTH-ALGO through a small allowlist. If the value is unknown, the mapped algorithm...

CVE-2026-73316

CVE-2026-73316: PayPal webhook replay XenForo before 2.3.13 processes the same valid PayPal REST webhook more than once. What happens The PayPal REST provider overrides XenForo's base transaction validator but omits its duplicate transaction-log lookup. The database index is also non-unique. Two...

CVE-2026-73315

CVE-2026-73315: SSRF through PayPal certificate URL XenForo before 2.3.13 fetches the certificate URL supplied by a PayPal REST webhook without restricting its destination. What happens The callback handler passes PAYPAL-CERT-URL to XenForo's trusted HTTP reader. It does not require a PayPal...

CVE-2026-93511

The Premium Packages WordPress plugin before 7.2.1 does not verify PayPal's webhook signature before processing payment and subscription notifications, allowing unauthenticated attackers to forge payment confirmations and subscription-cancellation events against any order whose transaction id the...

CVE-2026-80342

The Payment Plugins for PayPal WooCommerce WordPress plugin before 2.0.27 does not verify that a PayPal order supplied in a payment request belongs to the WooCommerce order being paid unless that PayPal order has already been completed, allowing unauthenticated attackers to have another buyer's...

EUVD-2026-85063

The Premium Packages WordPress plugin before 7.2.1 does not verify PayPal's webhook signature before processing payment and subscription notifications, allowing unauthenticated attackers to forge payment confirmations and subscription-cancellation events against any order whose transaction id the...

CVE-2026-93511 Premium Packages < 7.2.1 - Unauthenticated PayPal Webhook Signature Verification Bypass

The Premium Packages WordPress plugin before 7.2.1 does not verify PayPal's webhook signature before processing payment and subscription notifications, allowing unauthenticated attackers to forge payment confirmations and subscription-cancellation events against any order whose transaction id the...

CVE-2026-93511

The Premium Packages WordPress plugin (versions 7.0.0-7.2.0 ) is vulnerable to an unauthenticated PayPal webhook signature verification bypass . Because the plugin fails to verify PayPal's webhook signature before processing notifications, an attacker can forge payment confirmations and subscript...

CVE-2026-80342

The Payment Plugins for PayPal WooCommerce WordPress plugin (versions before 2.0.27 ) is vulnerable to an unauthenticated payment hijacking attack. The root cause is a failure to verify that a supplied PayPal order belongs to the specific WooCommerce order being paid, unless the PayPal order is a...

EUVD-2026-85027

The Payment Plugins for PayPal WooCommerce WordPress plugin before 2.0.27 does not verify that a PayPal order supplied in a payment request belongs to the WooCommerce order being paid unless that PayPal order has already been completed, allowing unauthenticated attackers to have another buyer's...