Input validation vulnerability in Gift Message for WooCommerce 1.7.8

The Gift Message for WooCommerce plugin for WordPress has a security issue that could allow attackers to perform unauthorized actions on a website. This vulnerability affects all versions up to 1.7.8. The problem is caused by a function that does not properly validate a security measure called nonce. Nonce helps prevent unauthorized actions, but in this case, it is missing or not working correctly. To exploit this vulnerability, attackers would need to trick a site administrator into clicking on a malicious link.