The Paymob for WooCommerce WordPress plugin before 4.1.9 does not properly sanitise a client-supplied identifier before using it in a SQL query within its public, unauthenticated payment callback, and performs this query before verifying the payment provider's HMAC signature. This allows unauthenticated attackers to perform SQL injection and read arbitrary data from the database — including user credentials and other secrets — through both in-band (reflected) and time-based blind extraction.

The Paymob for WooCommerce WordPress plugin before 4.1.14 does not verify the request signature on the card-token branch of its payment webhook, allowing unauthenticated attackers to write a card-token record to any user's account and to enumerate registered accounts.

The Paymob for WooCommerce WordPress plugin before 4.1.14 does not verify the request signature on one branch of its payment webhook, allowing unauthenticated attackers to mark arbitrary WooCommerce orders as paid without any payment.

The Paymob for WooCommerce WordPress plugin before 4.1.14 does not perform a capability check on several admin AJAX actions that manage its payment-gateway configuration, allowing users with contributor-level access to delete, wipe, or modify that configuration, including the stored payment credentials.