[ken elmer]

I am receiving the following error when I try and import a CSV file, using the paid CSV Import extension: ERROR: Sorry, this file type is not permitted for security reasons.

[Steven Zahm]

@ ken

If you are receiving this error, this is more than likely being caused by the server and its restrictions or its file mime type handling is incorrectly configured. You would have to consult your webhost to get that fixed.

That said, it is likely much easier to following the instructions to in this FAQ on how to deal with the “ERROR: Sorry, this file type is not permitted for security reasons.” error message.

Hope this helps!

[ken elmer]

Thanks for your help. I tried creating the directory and csv_files and using all three permission settings, but nothing works. Still getting the same error. I will contact my server company, but I would like to resolve this quicker if possible. I do not see a direct article on this error, even though you reference it in your post above. Is there a workaround strictly for this error?

[Steven Zahm]

@ ken

The blue text in my last reply is a link, click it, it takes you straight to the FAQ. It is really only a single sentence, I’ll copy/paste it here for your convenience.

The issue is that the server is not properly recognizing the CSV file mime type. A solution that seems to always work is to change the file extension from .csv to .txt.

[ken elmer]

Yes, I tried everything on that FAQ page and nothing has worked. I’ve changed the folder and permissions, as well as moving from .csv to .txt extensions. I’ll put a ticket in with my hosting company, but they are slow to move. I guess we will import everything manually until then.

[Steven Zahm]

@ ken

It’s been at least a couple years since anyone has had this WordPress error shown and the fix was as simple as changing the file name.

I know one other user is having the exact same issue. It is either a coincidence or perhaps the last security update WordPress pushout out a few days ago changed something that might have affected a very limited number of users in regards to csv file uploads (so far you and one other).

To learn more and address the issue, I’ll need a temp WP admin login and a FTP login. You can post the login details here as a private reply. Once I have the logins, I’ll take a look asap.

[Steven Zahm]

@ ken

The WordPress security update to 4.7.1 seems to break the ability to upload several file types (mp3, some docx, etc). Unintended consequence no doubt. At this point, I am not sure what the fix is, but I am working on it.

[Steven Zahm]

@ ken

It seems that the WordPress dev are aware of this issue and are working to fix it with 4.7.2. The WordPress Trac ticket is here:

https://core.trac.wordpress.org/ticket/39550

Until they have a fix and release it, they are recommending installing this plugin:

https://wordpress.org/plugins/disable-real-mime-check/

Can you please install and activate this plugin and then try to import your CSV file?

[Steven Zahm]

@ ken

I’ve read and reread the WordPress Trac ticket about this issue. I’m not certain if this is actually going to be considered a bug which requires fixing.

So…

I just released an update to CSV Import, version 1.4.2, which address the change in WordPress 4.7.1 in a secure way which should now allow you to upload CSV files again.

This update to CSV Import will (err should) work regardless of any changes that may or may not come with WordPress 4.7.2 in regards to this issue.

Hope that helps, apologies for the trouble!

ps. If you installed the Disable Real MIME Check plugin, you should deactivate and delete it.

pss. If you see this same error in the WordPress Media Library when uploading files, then you will still need the Disable Real MIME Check plugin installed. The change I made to CSV Import will not affect other plugins or WordPress when uploading files which throw this error.

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