Title: theme_editor.php 404 error
Last modified: August 19, 2016

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# theme_editor.php 404 error

 *  [xzykho](https://wordpress.org/support/users/xzykho/)
 * (@xzykho)
 * [15 years, 10 months ago](https://wordpress.org/support/topic/theme_editorphp-404-error/)
 * I’ve only encountered this today so I don’t know what to call it, anyway it happens
   when I’m inside the admin, appearance editor, when I click the “Update File” 
   button I get redirected to my 404 page, I’ve replaced all files I have tinkered
   with with the original files I’ve disabled all my plugins, funny thing is it 
   happens even to the default theme templates.
 * Any idea how to work with this? Thanks a bunch guys…

Viewing 4 replies - 1 through 4 (of 4 total)

 *  Thread Starter [xzykho](https://wordpress.org/support/users/xzykho/)
 * (@xzykho)
 * [15 years, 10 months ago](https://wordpress.org/support/topic/theme_editorphp-404-error/#post-1519220)
 * I would just like to add how the link looks when it goes to the 404 page
 * wp-admin/theme-editor.php?file=/home/prodiga1/public_html/beta/wp-content/themes/
   mystique/style-red.css&theme=Mystique&a=te&scrollto=0
 *  [esmi](https://wordpress.org/support/users/esmi/)
 * (@esmi)
 * [15 years, 10 months ago](https://wordpress.org/support/topic/theme_editorphp-404-error/#post-1519260)
 * Try re-uploading the wp-admin and wp-includes folders from a **fresh** download
   of WordPress.
 *  [thunpro](https://wordpress.org/support/users/thunpro/)
 * (@thunpro)
 * [15 years, 8 months ago](https://wordpress.org/support/topic/theme_editorphp-404-error/#post-1519515)
 * Hello everyone,
 * I’m having a similar problem to the OP. Nothing seems to be fixing it. I thought
   it was perhaps WP 3.0, but I’ve since found the same problem on an older site
   using the last WP version before 3.0.
 * I notice this thread has been quiet for the last month. Did anyone here figure
   out how to fix this problem?
 * Any tips would be greatly appreciated.
 * Thanks
 *  [thunpro](https://wordpress.org/support/users/thunpro/)
 * (@thunpro)
 * [15 years, 8 months ago](https://wordpress.org/support/topic/theme_editorphp-404-error/#post-1519521)
 * Ok, looks like no one is checking this thread any more.
 * Thankfully, I found the solution to my particular problem. And since I HATE it
   when people post their problems on a forum and then never return to share the
   solution once they find it, I thought I would return here in case anyone finds
   this forum in a google search.
 * In my particular scenario, I managed to figure out that the problem wasn’t anything
   to do with the installation of WordPress, the theme, or plugins, etc. To come
   to this conclusion, I set up a brand new WP installation elsewhere on my server.
   When this new installation still had the same problem, I knew it was most likely
   something to do with the server. So I emailed my host. I suggest you do the same.
   Here’s what my host wrote back:
 * “Those are security errors, meaning the server has detected a common exploit 
   technique in what you’re posting back to the server, so its blocking this.. I
   think recently a update in software has made more false positives like yours 
   so im still trying to tweak them. I’ve disabled this now on your account, give
   it a go now and let me know the result.”
 * Whatever security setting my host disabled managed to fix my problem for good.
   🙂
 * I hope the above helps anyone else in a similar predicament. To retireate, in
   my case it had NOTHING to do with the WP installation, its version number, its
   theme, or plugins. It was strictly to do with some security settings on the server
   controlled by the host.

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘theme_editor.php 404 error’ is closed to new replies.

## Tags

 * [404-error](https://wordpress.org/support/topic-tag/404-error/)
 * [appearance](https://wordpress.org/support/topic-tag/appearance/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 4 replies
 * 3 participants
 * Last reply from: [thunpro](https://wordpress.org/support/users/thunpro/)
 * Last activity: [15 years, 8 months ago](https://wordpress.org/support/topic/theme_editorphp-404-error/#post-1519521)
 * Status: not resolved

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