Title: Multi Uploader for Gravity Forms
Author: sh1zen
Published: <strong>September 3, 2021</strong>
Last modified: December 16, 2025

---

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# Multi Uploader for Gravity Forms

 By [sh1zen](https://profiles.wordpress.org/sh1zen/)

[Download](https://downloads.wordpress.org/plugin/gf-multi-uploader.1.1.8.zip)

 * [Details](https://pcd.wordpress.org/plugins/gf-multi-uploader/#description)
 * [Reviews](https://pcd.wordpress.org/plugins/gf-multi-uploader/#reviews)
 *  [Installation](https://pcd.wordpress.org/plugins/gf-multi-uploader/#installation)
 * [Development](https://pcd.wordpress.org/plugins/gf-multi-uploader/#developers)

 [Support](https://wordpress.org/support/plugin/gf-multi-uploader/)

## Description

This is an advanced upload plugin for those who need a little more than the default
multi file upload of Gravity Forms.

The plugin options page provides you with granular control over many Plupload parameters
from file extension filters to chunked uploading and runtimes.

All files are uploaded to the WordPress media library on successful form submission
making for easy access and management.

**FEATURES**

 * **_Safety:_** validation of both file extension and mime type.
 * **_Privacy:_** filenames changed once added to media library.
 * **_Advanced Customization:_** many options and many hooks to modify any plugin
   rule.
 * **_Large File Support:_** enabled by chunked file uploads.
 * **_Media library integration:_** all files are uploaded to the WordPress media
   library on successful form submission making for easy access and management.
 * **_Entry list creation integration:_** A list of all correctly uploaded files,
   with relative link.

**DONATIONS**

This plugin is free and always will be, but if you are feeling generous and want
to show your support, you can buy me a
 beer or coffee [here](https://www.paypal.com/donate?business=dev.sh1zen%40outlook.it&item_name=Thank+you+in+advanced+for+the+kind+donations.+You+will+sustain+me+developing+GF-Multi-Uploader.&currency_code=EUR),
I will really appreciate it.

### Hooks

Filters:
 * ‘gfmu_plugin_locale’ * ‘gfmu_before_attach_uploads’ * ‘gfmu_maybe_insert_attachment’*‘
gfmu_server_validation_args’ * ‘gfmu_insert_attachment_args’ * ‘gfmu_field_options’*‘
gfmu_save_entry’

## Installation

This section describes how to install the plugin. In general, there are 3 ways to
install this plugin like any other
 WordPress plugin.

**1. VIA WORDPRESS DASHBOARD**

 * Click on ‘Add New’ in the plugins dashboard
 * Search for ‘WP Optimizer’
 * Click ‘Install Now’ button
 * Activate the plugin from the same page or from the Plugins Dashboard

**2. VIA UPLOADING THE PLUGIN TO WORDPRESS DASHBOARD**

 * Download the plugin to your computer
    from [https://wordpress.org/plugins/wp-optimizer/](https://wordpress.org/plugins/gravity-forms-multi-uploader/)
 * Click on ‘Add New’ in the plugins dashboard
 * Click on ‘Upload Plugin’ button
 * Select the zip file of the plugin that you have downloaded to your computer before
 * Click ‘Install Now’
 * Activate the plugin from the Plugins Dashboard

**3. VIA FTP**

 * Download the plugin to your computer
    from [https://wordpress.org/plugins/wp-optimizer/](https://wordpress.org/plugins/gravity-forms-multi-uploader/)
 * Unzip the zip file, which will extract the main directory
 * Upload the main directory (included inside the extracted folder) to the /wp-content/
   plugins/ directory of your website
 * Activate the plugin from the Plugins Dashboard

**FOR MULTISITE INSTALLATION**

 * Log in to your primary site and go to “My Sites” » “Network Admin” » “Plugins”
 * Install the plugin following one of the above ways
 * Network activate the plugin

**INSTALLATION DONE, A NEW LABEL WILL BE DISPLAYED ON YOUR ADMIN MENU**

## FAQ

### What to do if I run in some issues after upgrade?

Deactivate the plugin and reactivate it, if this doesn’t work try to uninstall and
reinstall it. That should
 work! Otherwise, go to the new added module “Setting”
and try a reset.

### Change Plupload Language Dynamically

Use ‘gfmu_uploader_i18n_script’ filter to select language for Plupload:

add_filter( ‘gfmu_uploader_i18n_script’, ‘plupload_i18n’ );
 function plupload_i18n(
$i18n_filename ) { return ‘es’; }

## Reviews

There are no reviews for this plugin.

## Contributors & Developers

“Multi Uploader for Gravity Forms” is open source software. The following people
have contributed to this plugin.

Contributors

 *   [ sh1zen ](https://profiles.wordpress.org/sh1zen/)

[Translate “Multi Uploader for Gravity Forms” into your language.](https://translate.wordpress.org/projects/wp-plugins/gf-multi-uploader)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/gf-multi-uploader/),
check out the [SVN repository](https://plugins.svn.wordpress.org/gf-multi-uploader/),
or subscribe to the [development log](https://plugins.trac.wordpress.org/log/gf-multi-uploader/)
by [RSS](https://plugins.trac.wordpress.org/log/gf-multi-uploader/?limit=100&mode=stop_on_copy&format=rss).

## Changelog

#### 1.1.8

 * fixed Arbitrary File Deletion CVE-2025-14344
 * extended support to WordPress 6.9
 * updated translations

#### 1.1.7

 * fixed issue on GF_MultiUploader_Field.class.php filename
 * extended support to WordPress 6.8
 * updated translations

#### 1.1.5

 * fixed Arbitrary File Upload CVE-2025-23921

#### 1.1.3

 * extended support to WordPress 6.7
 * updated translations
 * fixed some bugs

#### 1.1.2

 * extended support to WordPress 6.5
 * updated translations
 * fixed filesize and file modified time bugs

#### 1.1.0

 * extended support to WordPress 6.4
 * extended support to PHP 8.3
 * moved minimum PHP supported version to 7.4
 * updated translations
 * added support for mp4 media as suggested

#### 1.0.10

 * extended support to WordPress 6.3
 * extended support to PHP 8.2
 * moved minimum PHP supported version to 7.0
 * moved minimum WordPress supported version to 5.0
 * updated translations
 * improved performances

#### 1.0.9

 * extended support to WordPress 6.1
 * updated translations

#### 1.0.8

 * improved performances
 * extended support to WordPress 6.0

#### 1.0.7

 * extended supported image formats to webp

#### 1.0.6

 * fixed some bugs
 * tested up to WordPress 5.9 and PHP 8.1

#### 1.0.3

 * updated translations.
 * improved upload performances
 * fixed a bug reported during delete operation

#### 1.0.0

 * first public release.

## Meta

 *  Version **1.1.8**
 *  Last updated **4 months ago**
 *  Active installations **30+**
 *  WordPress version ** 5.0 or higher **
 *  Tested up to **6.9.4**
 *  PHP version ** 7.4 or higher **
 *  Language
 * [English (US)](https://wordpress.org/plugins/gf-multi-uploader/)
 * Tags
 * [File Uploader](https://pcd.wordpress.org/plugins/tags/file-uploader/)[gravity forms](https://pcd.wordpress.org/plugins/tags/gravity-forms/)
   [gravity forms uploader](https://pcd.wordpress.org/plugins/tags/gravity-forms-uploader/)
   [plupload](https://pcd.wordpress.org/plugins/tags/plupload/)[uploader](https://pcd.wordpress.org/plugins/tags/uploader/)
 *  [Advanced View](https://pcd.wordpress.org/plugins/gf-multi-uploader/advanced/)

## Ratings

No reviews have been submitted yet.

[Add my review](https://wordpress.org/support/plugin/gf-multi-uploader/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/gf-multi-uploader/reviews/)

## Contributors

 *   [ sh1zen ](https://profiles.wordpress.org/sh1zen/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/gf-multi-uploader/)

## Donate

Would you like to support the advancement of this plugin?

 [ Donate to this plugin ](https://www.paypal.com/donate?business=dev.sh1zen%40outlook.it&item_name=Thank+you+in+advanced+for+the+kind+donations.+You+will+sustain+me+developing+GF-Multi-Uploader.&currency_code=EUR)