Thread:Project:Support desk/Permission to run script

I am running a wiki for my PhD research. The features are MediaWiki 1.24.2, PhP 5.3.8, MySqQL 5.5.21. At first I didn't put a captcha, so it has been already overwhelmed by spam. Althoug I blocked all the bots and deleted the pages, I need now to run some script for a deeper clean. Unfortunately, I didn't manage to did that through Putty, so I installed the Maintenace extensions to run the scripts from a web browser. However, I can't access the Maintenance page because it seems that I don't have the rights to perform such an action. I already added my credentials in local settings trough $wgDBadminuser and $wgDBadminpassword, but it didn't work. I definitely need to get it done as soon as possible as I am going to hold a teaching workshop about the wiki in a few days. Any suggestion on how got this permission is very welcome.