Drupal 7.x

Hello, I have a trouble with my Drupal 7.66 site: somebody hacked it and added the links to every piece of content that contain something like that below.

Looks like it hacked through some module's vulnerability and modified the data in every article (all the revisions are affected). 

What would be the best way to look for the vulnerability and where can I report it? 

I have a content type which includes a date field. I have a view which displays this field and uses it in the filter criteria. This morning I noticed that the filter granularity was wrongly set and tried to alter it. My change was not saved. I have tried deleting the field from the filter criteria and re-creating it. I am able to select the field from those available but when I click apply I just get back to the main view form. I do not see the form that should allow me to configure the filter. Nothing is added to the filter criteria.

I have a custom Contact content type.

Hello all,

I am struggling with the following case with Drupal and PHP hardening on an Red Hat Linux infrastructure.

For drupal installation a user has been created. All the files and directories are owned by this specific user. Due to the security hardening that we have applied, we restricted chmod from PHP and now drupal is not working properly. In order for new content to be uploaded to site from the Administrative panel, chmod is being used so that files should be uploaded under /sites/default/files with the proper rights.