123456789123456789 is simply a placeholder on the changebasic and editbasic pages for the password field so that it appears populated; the changebasic and editbasic script pages ignore the password field when this value is present.

Code
	if ($ChosenPassword != "123456789123456789") {
		$changepassword = 1;
		$ChosenPassword = md5($ChosenPassword);
	}

It is odd that the system allowed the page to process the password change to this value as it's specifically coded to ignore that value.

I am a Web Development Contractor, I do not work for UBBCentral. I have provided free User to User Support since the beginning of these support forums.
Do you need Forum Install or Upgrade Services?
Forums: A Gardeners Forum
UBB.threads: UBBWiki, UBB Styles, UBB.Sitemaps
Longtime Supporter & Resident Post-A-Holic
VNC Web Services: Code Modifications, Upgrades, Styling, Coding Services, Disaster Recovery, and more!