C'est une vulnérabilité de sévérité moyenne, à corriger dans le cadre de la maintenance normale du site.
Cette faille affecte Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI, un plugin WordPress, dans les versions < 3.4.5. Le correctif est disponible en version 3.4.5.
Description technique (source WPVulnerability.net) : « The Everest Forms plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 3.4.4. This is due to the `load_previous_field_value()` method in `class-evf-form-task.php` accepting arbitrary URL values from `$_POST` data for upload fields without domain restriction, which are then passed to `wp_remote_head()` in the `get_local_file_size()` method of `class-evf-form-fields-upload.php`. This makes it possible for unauthenticated attackers to force the WordPress server to make outbound HTTP HEAD requests to arbitrary URLs by submitting a form with an upload field containing a malicious URL while leaving a required field empty to trigger form re-rendering. »
Comment savoir si je suis touché ?
La seule manière fiable de savoir si votre site est concerné est de vérifier la version de Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI réellement installée. ScanMonSite automatise ce contrôle à distance, en lecture seule, gratuitement.