CVE-2026-2428

The CVE concerns the Fluent Forms Pro Add On Pack for WordPress, vulnerable in all versions up to 6.1.17 due to disabled PayPal IPN verification (disable_ipn_verification defaults to 'yes' in PayPalSettings.php). This enables unauthenticated attackers to send forged PayPal IPN notifications to th...

CVE-2026-2428: Insufficient Verification of Data Authenticity

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...

CVE-2026-0632: Server-Side Request Forgery (SSRF)

The Fluent Forms Pro Add On Pack plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 6.1.12 via the 'saveDataSource' function. This makes it possible for authenticated attackers, with Subscriber-level access and above, to make web requests to...