There is a possible code injection vulnerability in the Active Storage module
of Rails.  This vulnerability impacts applications that use Active Storage
with the image_processing processing in addition to the mini_magick back end
for image_processing.

Vulnerable code will look something similar to this:

```ruby
<%= image_tag blob.variant(params[:t] => params[:v]) %>
```

Where the transformation method or its arguments are untrusted arbitrary
input.


Versions Affected:  >= 5.2.0
  Not affected:       < 5.2.0
  Fixed Versions:     7.0.2.3, 6.1.4.7, 6.0.4.7, 5.2.6.3


References: 
https://github.com/advisories/GHSA-w749-p3v6-hccq