Input validation vulnerability in Greek Namedays Widget From Eortologio.Net 20191113

A plugin called “Greek Namedays Widget” for the website creation platform WordPress has a security issue that can be exploited by hackers. This vulnerability, found in versions up to and including 20191113, is caused by not properly filtering and protecting user input. This means that attackers who have at least contributor-level access to the website can insert harmful code into pages that will run when someone visits the affected page.