Title: Unknown file in WordPress core: wp-includes/class.wp.php
Last modified: January 15, 2017

---

# Unknown file in WordPress core: wp-includes/class.wp.php

 *  [maweb](https://wordpress.org/support/users/maweb/)
 * (@maweb)
 * [9 years, 4 months ago](https://wordpress.org/support/topic/unknown-file-in-wordpress-core-wp-includesclass-wp-php/)
 * Hello, i receive this notice:
 * Issue
    Unknown file in WordPress core: wp-includes/class.wp.php
 * Filename: wp-includes/class.wp.php
    File type: Core Issue first detected: 19 
   mins ago. Severity: Warning Status New
 * This file is in a WordPress core location but is not distributed with this version
   of WordPress. This is usually due to it being left over from a previous WordPress
   update, but it may also have been added by another plugin or a malicious file
   added by an attacker.
 * Tools:
    Delete this file (can’t be undone). Select for bulk delete
    -  This topic was modified 9 years, 4 months ago by [maweb](https://wordpress.org/support/users/maweb/).

The topic ‘Unknown file in WordPress core: wp-includes/class.wp.php’ is closed to
new replies.

 * ![](https://ps.w.org/wordfence/assets/icon.svg?rev=2070865)
 * [Wordfence Security - Firewall, Malware Scan, and Login Security](https://wordpress.org/plugins/wordfence/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/wordfence/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/wordfence/)
 * [Active Topics](https://wordpress.org/support/plugin/wordfence/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/wordfence/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/wordfence/reviews/)

 * 0 replies
 * 1 participant
 * Last reply from: [maweb](https://wordpress.org/support/users/maweb/)
 * Last activity: [9 years, 4 months ago](https://wordpress.org/support/topic/unknown-file-in-wordpress-core-wp-includesclass-wp-php/)
 * Status: not resolved