Can't access users from control panel

Discussion regarding Joomla! 3.x security issues.

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Chubacheroo
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Can't access users from control panel

Postby Chubacheroo » Sun Jan 07, 2018 12:35 pm

I have been trying to delete the many, many, many spammers who have registered as users on my site, and that was working fine. However, when I tried to "view all", it took a while to load, so I decided to try and remove all the lovely spam links they've somehow embedded into my content.

Going back to remove more users, I am now unable to see any of my users at all. I just get a white screen. Help!

I'm running 3.6.0 (I know I need to update this, but want to sort this issue out first).
Last edited by toivo on Sun Jan 07, 2018 12:55 pm, edited 1 time in total.
Reason: mod note: moved to 3.x Security

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wwhite
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Re: Can't access users from control panel

Postby wwhite » Sun Jan 07, 2018 4:44 pm

Please set error reporting to maximum and see if it throws an error.
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fcoulter
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Re: Can't access users from control panel

Postby fcoulter » Sun Jan 07, 2018 6:43 pm

You may be running out of memory, if you have a very large number of spam registrations it can overload the server or the database when you try to view them all.

You can override the number of users dispalyed very simply by simply appending &limit=xxx to the URL of the users view, where xxx is the number displayed, eg if your site is example.com, the URL of the users view would be

Code: Select all

https://example.com/administrator/index.php?option=com_users


so you add the limit parameter by typing it into the address bar


Code: Select all

https://example.com/administrator/index.php?option=com_users&limit=200


It is a useful thing to know with Joomla that you can always override the length of a list like this, if you get into trouble trying to display too many items at once.

Also I think just logging out, clearing cookies from your browser and logging in again should do the trick. The list limit is stored in the user session data, if you destroy that then it should default to the normal list limit.
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abernyte
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Re: Can't access users from control panel

Postby abernyte » Mon Jan 08, 2018 6:48 pm

all the lovely spam links they've somehow embedded into my content.


Can we assume that this user deletion is part of your work to recover from the hack that your site has?
viewtopic.php?f=714&t=946026 may be pertinent.
It ain't what you don't know that gets you into trouble. It's what you know for sure that just ain't so. Twain

Chubacheroo
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Re: Can't access users from control panel

Postby Chubacheroo » Sun Feb 25, 2018 7:42 am

Thank you very much! I'll give this a go.


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