EUVD-2026-54189

The WP Travel Engine WordPress plugin before 6.8.2 does not verify that an incoming PayPal payment notification was sent to the site's configured merchant account, nor that the paid amount matches the order total, before marking a booking as paid, allowing unauthenticated attackers to mark bookin...

CVE-2026-14936

The Simple Membership WordPress plugin before 4.7.7 does not verify that a PayPal payment notification was sent to the site's own configured merchant account before activating a membership, allowing unauthenticated users to activate or extend a membership using a payment made to an arbitrary PayP...

CVE-2026-12501 WP Travel Engine < 6.8.2 - Unauthenticated Payment Bypass via Missing PayPal IPN Receiver and Amount Verification

The WP Travel Engine WordPress plugin before 6.8.2 does not verify that an incoming PayPal payment notification was sent to the site's configured merchant account, nor that the paid amount matches the order total, before marking a booking as paid, allowing unauthenticated attackers to mark bookin...

CVE-2026-15152 WP Hotel Booking < 2.3.2 - Unauthenticated PayPal Payment Bypass

The WP Hotel Booking WordPress plugin before 2.3.2 does not verify that a payment notification corresponds to a payment made to the site's own merchant account, nor that the paid amount matches the booking total, allowing unauthenticated users to have their bookings marked as fully paid without a...

CVE-2026-13143 WP Travel < 11.8.1 - Unauthenticated Payment Bypass via Forged PayPal IPN

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 ...

EUVD-2026-51007

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 CVE describes a vulnerability in the ProfileGrid WordPress plugin prior to version 5.9.9.7 where PayPal IPN notifications are not verified before granting paid group membership. This allows unauthenticated attackers to Forge a payment notification and set any user as a paid member of any grou...

EUVD-2026-48489

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...

EUVD-2026-43238

A vulnerability was detected in AojiaoZero Antaris 1.0. This affects the function rewardPurchase of the file /ipn.php of the component PayPal IPN Payment Handler. The manipulation of the argument itemnumber results in sql injection. The attack may be performed from remote. The vendor was contacte...

CVE-2026-11901 WP Hotel Booking <= 2.3.1 - Unauthenticated Insufficient Verification of Data Authenticity to Payment Bypass via PayPal IPN Handler

The WP Hotel Booking plugin for WordPress is vulnerable to Insufficient Verification of Data Authenticity in all versions up to, and including, 2.3.1. This is due to the webhookprocesspaypalstandard IPN handler selecting its PayPal validation endpoint from the attacker-controlled $REQUEST'testipn...

CVE-2026-9242

The RegistrationMagic – Custom Registration Forms, User Registration, Payment, and User Login plugin for WordPress is vulnerable to Authentication Bypass via Insufficient Verification of Data Authenticity in all versions up to and including 6.0.8.6. This is due to the PayPal IPN callback handler...

PT-2026-53059

Name of the Vulnerable Software and Affected Versions RegistrationMagic – Custom Registration Forms, User Registration, Payment, and User Login versions prior to 6.0.8.7 Description An authentication bypass exists due to insufficient verification of data authenticity. The PayPal IPN callback...

EUVD-2026-19878

WWBN AVideo Affected by a PayPal IPN Replay Attack Enabling Wallet Balance Inflation via Missing Transaction Deduplication in ipn.php...

CVE-2026-39366

CVE-2026-39366 affects WWBN AVideo prior to or including version 26.0. The PayPal IPN v1 handler at plugin/PayPalYPT/ipn.php does not perform transaction deduplication, enabling an attacker to replay a single legitimate IPN notification to repeatedly inflate wallet balances and renew subscription...

CVE-2026-2428

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-2025-13384

The WordPress plugin CP Contact Form with PayPal (

Linux Distros Unpatched Vulnerability : CVE-2018-1081

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in Moodle 3.4 to 3.4.1, 3.3 to 3.3.4, 3.2 to 3.2.7, 3.1 to 3.1.10 and earlier unsupported versions. Unauthenticated users can trigger custom...