CVE-2026-13143

The WP Travel WordPress plugin before 11.8.1 does not verify PayPal Instant Payment Notifications through the PayPal post-back handshake before marking a booking paid, allowing unauthenticated attackers to forge a notification that flips an arbitrary pending booking to a paid and booked state at ...

CVE-2026-12688

The ProfileGrid WordPress plugin before 5.9.9.7 does not verify PayPal IPN notifications before granting paid group membership, allowing unauthenticated attackers to forge a payment notification and mark any user as a paid member of any group without any payment being made...

PT-2026-44772

Name of the Vulnerable Software and Affected Versions Contact Form 7 – PayPal & Stripe Add-on versions prior to 2.5.0 Description The plugin is subject to a payment bypass due to insufficient verification of data authenticity. While the cf7pp paypal ipn handler function validates IPN authenticity...

EUVD-2026-8986

The Fluent Forms Pro Add On Pack plugin for WordPress is vulnerable to Insufficient Verification of Data Authenticity in all versions up to, and including, 6.1.17. This is due to the PayPal IPN Instant Payment Notification verification being disabled by default disableipnverification defaults to...