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XF 1.5 Recent problem

In the past few weeks at random times a user will create a thread that nobody can access. When trying to access it you get the error:

'You don't have permission to access /index.php on this server.'

There are no server errors listed and no matter what I try I can't access it to read or edit it. My only choice is to delete it. Has anyone experienced this and can shed some light on it?


XenForo developer
Staff member
What's the thread's URL?

This is very likely a false positive from mod_security. Your host should be able to identify the rule and disable it.