WordPress File Permission Errors and Security Best Practices
Error message:
Unable to create directory / Could not create directoryWordPress needs write access to certain directories (wp-content/uploads, wp-content/cache) to function properly. If file permissions are wrong, you’ll get errors when uploading media, installing plugins, or updating WordPress.
Common Causes
- Incorrect file ownership (should be www-data or your web server user)
- File permissions too restrictive (can't write to wp-content/uploads)
- SELinux or AppArmor blocking write access
- Hosting environment restrictions on file creation
- WordPress trying to write to a read-only filesystem
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Frequently Asked Questions
What are the correct file permissions for WordPress?
Files: 644, directories: 755, wp-config.php: 440 or 400. The web server user (usually www-data) should own all WordPress files.
Should I set WordPress files to 777?
Never. 777 means anyone can read, write, and execute those files. This is a major security vulnerability. Always use 644 for files and 755 for directories.
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