N8n WordPress Media Upload Failing - "The service was not able to process your request"

[Sandro]

I’m trying to upload images to WordPress via the REST API using n8n, but I’m getting an error. Here’s my setup:

Configuration:

• Method: POST
• URL: [my-domain]/wp-json/wp/v2/media/
• Authentication: WordPress API (using application password)
• Headers:
  • content-disposition: attachment; filename={{ $binary.data.fileName }}
  • content-type: {{ $binary.data.mimeType }}
• Body Content Type: n8n Binary File
• Input Data Field Name: data

Error Message:

“The service was not able to process your request” “Du bist leider nicht berechtigt, diesen Dateityp hochzuladen.” (You are not authorized to upload this file type)

Questions:

1. Is my header configuration correct for WordPress media uploads?
2. Could this be a file permission issue on the WordPress side?
3. Do I need to add the .htaccess authorization rules for the WordPress REST API?
4. Is there a different approach for handling binary file uploads to WordPress via n8n?

The file I’m trying to upload is a standard JPEG image. WordPress is hosted on a Hestia control panel server.

Any help would be greatly appreciated!

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• n8n version:
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• n8n EXECUTIONS_PROCESS setting (default: own, main):
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[King_Samuel_David]

@Sandro

“The service was not able to process your request” “Du bist leider nicht berechtigt, diesen Dateityp hochzuladen.” (You are not authorized to upload this file type)

Hey @Sandro

It seems like you need a full stop between filename and file extension, it seems to be causing it to think it’s a different file type,

WP Extra File Types Plugin — WordPress.com which if using other file types u can use this, but am quite sure jpg is already acceptable, so it’s likely the full stop needed.

This is the node I have

Best regards,

Samuel