Title: Changing Database Prefix – MultiSite
Last modified: August 21, 2016

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# Changing Database Prefix – MultiSite

 *  [netpotion](https://wordpress.org/support/users/netpotion/)
 * (@netpotion)
 * [12 years, 3 months ago](https://wordpress.org/support/topic/changing-database-prefix-multisite/)
 * I just added this to a fresh multi-site installation and noticed that subdomains
   are apparently able to change the database prefix. They can also see what the
   current prefix is.
 * Even worse, it appears as though subdomains can create database backups.
 * This seems like a pretty big security flaw to me. What am I missing here?
 * Thanks,
 * ~ Corey
 * [https://wordpress.org/plugins/all-in-one-wp-security-and-firewall/](https://wordpress.org/plugins/all-in-one-wp-security-and-firewall/)

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Plugin Contributor [wpsolutions](https://wordpress.org/support/users/wpsolutions/)
 * (@wpsolutions)
 * [12 years, 3 months ago](https://wordpress.org/support/topic/changing-database-prefix-multisite/#post-4617320)
 * Sub sites of a multi-site can only change the prefix of their own databases and
   similarly they can only make backups of their own sub-site DB.
 * What leads you to believe that this is a security flaw?
 *  Thread Starter [netpotion](https://wordpress.org/support/users/netpotion/)
 * (@netpotion)
 * [12 years, 3 months ago](https://wordpress.org/support/topic/changing-database-prefix-multisite/#post-4617388)
 * Isn’t this exposing the prefix of the main database to anyone who signs up? It
   would seem to defeat the purpose of having the ability to change the prefix, 
   but only for the super admin. The only prefixes that would remain unknown to 
   others would be the ones created by the subdomains/folders.
 * Thanks,
 * ~ Corey

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Changing Database Prefix – MultiSite’ is closed to new replies.

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## Tags

 * [database](https://wordpress.org/support/topic-tag/database/)

 * 2 replies
 * 2 participants
 * Last reply from: [netpotion](https://wordpress.org/support/users/netpotion/)
 * Last activity: [12 years, 3 months ago](https://wordpress.org/support/topic/changing-database-prefix-multisite/#post-4617388)
 * Status: not resolved