Hi nicolas.veslin,
Certainly your site is insecure because of outdated PHP:
https://sitecheck.sucuri.net/results/www.ynitia.comOutdated CMS plug-ins:
wpfront-scroll-top 2.0.4 Warning latest release (2.0.7.08086)
http://wpfront.com/scroll-top-plugin/contact-form-7 5.5.3 Warning latest release (5.5.4)
https://contactform7.com/wordpress-seo 17.9 Warning latest release (18.0)
https://yoa.st/1ujPlugins are a source of many security vulnerabilities within WordPress installations, always keep them updated to the latest version available and check the developers plugin page for information about security related updates and fixes.
User enumeration: The first two user ID's were tested to determine if user enumeration is possible.
Username Name
ID: 1 admin8677
ID: 2 not found
It is recommended to rename the admin user account to reduce the chance of brute force attacks occurring. As this will reduce the chance of automated password attackers gaining access. Take note that if the author archives are enabled it is usually possible to enumerate all users within a WordPress installation.
Directory Indexing
In the test an attempt was made to list the directory contents of the uploads and plugins folders to determine if Directory Indexing is enabled. This is a common information leakage vulnerability that can reveal sensitive information regarding your site configuration or content.
Path Tested Status
/wp-content/uploads/ enabled
/wp-content/plugins/ disabled
Directory indexing is tested on the /wp-content/uploads/ and /wp-content/plugins/ directores. Note that other directories may have this web server feature enabled, so ensure you check other folders in your installation. It is good practice to ensure directory indexing is disabled for your full WordPress installation either through the web server configuration or .htaccess.
External link via CloudFlarenet: -colibriwp.com could have caused this FP.
But address the outdated CMS asap,
polonus