UBB.Developers Forums UBB.threads 6 Bug Reports Blank Usernames?

I have a message posted by someone on our board with no username displayed. There isn't a blank username account that shows up when viewing the User List. Luckily this person is not posting anything offensive, hard to track who he/she is to delete []/w3timages/icons/smile.gif[/]

Is there a way to prevent this from happening?

Do you have special characters allowed for usernames? This is usually the culprit for this as this allows them to use html characters that do not display in a browser.

I have the following:

$config['specialc']= 0;

Scream, the $config[specialc] setting checks only the html tags:   <, > and beginning and ending space characters.
You need to tighten it up to allow on alphanumeric characters [a-zA-Z0-9_] as the docs states.
I was able to register myself on this board with some very bad characters as you can see.

Just change line 26 (the one just after the comment // No special characters)

from

if ($config[specialc]) {

to

if ([:red]!$config[specialc]) {

Thanks, I made that change. That is for all new registrations though correct? How do I disallow this particular person from posting again as the "invisible man?"

You'll need a database tool like phpMyAdmin http://phpwizard.net/projects/phpMyAdmin/ or MysqlMan http://www.gossamer-threads.com/scripts/mysqlman/index.htm to access the tables and do what you wand with the records (like delete).
Be careful with these tools!