404 Error when to accessing /wp-admin/admin-ajax.php

When you receive this error:ForbiddenYou don’t have permission to access /wp-admin/admin-ajax.php on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

If you are receiving this error, then its likely you have mod_security installed on your server, and you will need to update your mod_security rules.

Find the following in your mod_security configuration:

Only accept request encodings we know how to handle
# we exclude GET requests from this because some(automated)
# clients supply "text/html" as Content-Type
SecFilterSelective REQUEST_METHOD "!^(GET|HEAD)$" chain
SecFilterSelective HTTP_Content-Type "!(^application/x-www-form-urlencoded$|^multipart/form-data;|^text/xml;)"

Change it to:

# Only accept request encodings we know how to handle
# we exclude GET requests from this because some (automated)
# clients supply “text/html” as Content-Type
SecFilterSelective REQUEST_METHOD “!^(GET|HEAD)$” chain
SecFilterSelective HTTP_Content-Type “!(^application/x-www-form-urlencoded;|^multipart/form-data;|^text/xml;)”

If you don’t have access to mod_security configuration (i.e. you are not the administrator of the server), then you can add the following to a .htaccess file for your site:

<IfModule mod_security.c>
SecFilterInheritance Off
</IfModule>

Tags: blog, cpanel, security, server-administration, wordpress

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Filed under: Uncategorized by — aaron @ 4:56 pm