Access violation vulnerability in Soumettre.fr 2.1.5

A plugin called Soumettre.fr used on WordPress websites has a security issue. This means that people who are not authorized to access or change information can still do so, because the plugin does not properly check for permission. This can allow hackers to make, change, or delete posts on a Soumettre account. The problem exists in all versions of the plugin, including the most recent one (2.1.5). This issue only affects websites where the Soumettre account is not connected, meaning the API key is not installed.