Sergey Biryukov

<p>With the upgrade to WordPress 4.7.1, some non-image files fail to upload on certain server setups. This will be fixed in 4.7.3, see the <a href="https://core.trac.wordpress.org/ticket/39550" rel="nofollow ugc">Trac ticket</a>.</p>
<p>In the meantime, this plugin is a workaround that disables the recently introduced strict MIME check to restore the upload functionality.</p>
<p>Don’t forget to remove the plugin once WordPress 4.7.3 is available!</p>


Disable Real MIME Check


IDK if it's a bug in WC or something, but I can't upload .csv files, had to hook this in so I can update some prices... very helpful!


works in WP 6.1 and WC 7.5

Restores the ability to upload non-image files in WordPress 4.7.1 and 4.7.2.

Kushang Tailor

<p>Restrict WP Upload Type gives you complete control over which files your users can upload to WordPress. Prevent security risks, maintain brand standards, and eliminate media library chaos with granular file type controls.</p>
<h4>Why You Need Upload Restrictions</h4>
<p>Uncontrolled uploads create serious problems:<br />
* Security vulnerabilities from unvetted file types<br />
* Brand inconsistency from mixed formats<br />
* Media library bloat from oversized files<br />
* Wasted time managing user uploads<br />
* Compliance violations with upload policies</p>
<h4>What This Plugin Does</h4>
<ul>
<li>Control over <strong>97 file extensions and MIME types</strong></li>
<li>Allow or block any format with a single click</li>
<li>Dedicated SVG file management with security</li>
<li>Real-time upload validation (prevents bad uploads before they happen)</li>
<li>Clear error messages guiding users to approved formats</li>
<li>Zero configuration complexity—works instantly</li>
</ul>
<h4>Who Should Use This</h4>
<ul>
<li>WordPress site owners wanting better media management</li>
<li>Teams needing consistent upload policies</li>
<li>Digital agencies managing multiple client sites</li>
<li>Organizations with compliance requirements</li>
<li>Anyone managing user permissions on WordPress</li>
</ul>
<h4>Key Features</h4>
<ul>
<li><strong>Comprehensive Format Support</strong>: Images (PNG, JPG, GIF, WebP, SVG, HEIC), Documents (PDF, DOCX, XLSX, PPT), Audio/Video (MP3, MP4, WAV, AVI), Archives (ZIP, RAR, 7Z), and more</li>
<li><strong>Flexible Controls</strong>: Whitelist allowed formats or blacklist restricted ones</li>
<li><strong>SVG Security</strong>: Dedicated toggle for SVG files with proper MIME type handling</li>
<li><strong>Lightweight Design</strong>: Minimal server overhead, zero performance impact</li>
<li><strong>User Feedback</strong>: Clear, helpful error messages when uploads are blocked</li>
<li><strong>WordPress Integrated</strong>: Works with Gutenberg, classic editor, REST API uploads, and block-based themes</li>
</ul>
<h4>How It Works</h4>
<ol>
<li>Install and activate the plugin</li>
<li>Visit <strong>Restrict Files</strong> page directly, After Media page</li>
<li>Check the boxes for file types you want to allow</li>
<li>Click Save</li>
<li>Done! Your restrictions are immediately active</li>
</ol>
<h4>What Users Are Saying</h4>
<p>“Simple, fast, and objective.” — 5-star review</p>
<p>“Excellent little plugin that will prove very useful.” — 5-star review</p>
<p>“Works like a charm. Simple to configure and highly effective.” — 5-star review</p>
<h4>Performance Impact</h4>
<p>This plugin adds minimal overhead. It uses lightweight MIME type filtering without database bloat. Your site’s speed remains unaffected.</p>
<h4>Future Roadmap</h4>
<p>We’re actively developing Restrict WP Upload Type based on user feedback. Planned features include role-based restrictions and file size limitations.</p>
<h4>Support</h4>
<p>Have questions? Visit our support forum on WordPress.org. We’re here to help!</p>
<h4>Learn More</h4>
<ul>
<li><a href="https://wordpress.org/plugins/restrict-wp-upload-type/" rel="ugc">Plugin Homepage</a></li>
<li><a href="https://wordpress.org/support/plugin/restrict-wp-upload-type/" rel="ugc">Support Forum</a></li>
</ul>
<h3>Donate link</h3>
<ul>
<li>If you’d like to support development, please visit https://profiles.wordpress.org/kushang78/</li>
</ul>
<h4>What about security?</h4>
<p>The plugin validates both file extensions and MIME types server-side to prevent header manipulation. It follows WordPress security best practices and standards.</p>
<h4>Can I override the restrictions for specific users?</h4>
<p>Not in the current version. The plugin applies restrictions globally. This feature is being considered for future versions.</p>
<h4>How often is this plugin updated?</h4>
<p>The plugin is actively maintained and updated as needed for WordPress compatibility and bug fixes. Subscribe to the support forum for update notifications.</p>
<h4>What if I find a bug?</h4>
<p>Please report issues in the support forum:<br />
https://wordpress.org/support/plugin/restrict-wp-upload-type/</p>
<p>We take all bug reports seriously and work to fix them promptly.</p>
<h4>Does this plugin work with multisite?</h4>
<p>Yes, it’s fully compatible with WordPress multisite. Each site in the network can have its own upload restrictions.</p>
<h4>Can I test the plugin on a staging site first?</h4>
<p>Absolutely! We recommend testing on a staging/development site first, then deploying to production.</p>


Restrict WP Upload Type

Restrict WP Upload Type gives you complete control over which files your users can upload to WordPress.

Disable Real MIME Check vs Restrict WP Upload Type